I got a new 2012 ford mustang. It's a 6 speed manual car. I have the basics down and do great in the parking lots. However, as soon as I go out of the parking lot and on to the road I freak out. Especially when I stop, mostly because I am afraid I’ll stall and start rolling down hill and hit somebody! I think my mind takes me to a dark place, when I drive manual. It’s been 3 days of 30 minutes practicing. I may need a new clutch by the end of this month by the looks of it. :) Please help me. Thanks all!!! 

What kind of advice are you looking for? I've been driving manual since I was sixteen, the only thing I can tell you is that practice will make it easier. You just have to do it. Sometimes you might stall and get a little embarassed, but before you know it it will all be second nature to you. 

Keep this in mind... being new to driving manual I'm sure you will stall the car. Everybody does when they first start learning. Will you go rolling down a hill and hit someone? Probably not, you know why? You have a BREAK PEDAL you can push to prevent it!
A trick my dad used to use with me when I was learning how to start from a stopped position on a hill, facing uphill (which I had to learn ASAP since we lived on a hill, and had to go uphill to leave the neighborhood)... because it takes some time getting used to putting the car in first and moving in a short amount of time to prevent rollback, he would have me use the hand e-brake to hold the car until it was in gear. Once the car started straining against the e-brake, it would be released and I'd be moving. It's not a habit you want to always do, but it was helpful for me as a temporary solution to preventing the car from rolling backwards down the hill while trying to put it into first gear. Once I got good enough to put the car and gear and go fast enough so the car wouldn't roll back I no longer needed the e-brake. If the Mustang has an e-brake, this might be a helpful solution for you to try while you're still learning.
Keep practicing, you will get better at it. Heck, after driving my Geo for 7 years people thought it was an automatic because of how smoothly I could shift it, I knew that car so well. With practice, I'm sure you can get there too! 

1) You WILL stall. It's normal. It's natural. When you stall, turn the car off completely, take a few deep breathes, then start over.
2) You WILL grind gears. Even when you are new to driving a manual, or been driving one for 10 years.
3) If you stall on a hill, any hill, any direction, as soon as you start moving forwards/backwards, put your foot on the break, turn the car off, engage the e-break, take a few deep breathes and start over.
4) When you are new to driving a manual, practice every scenario. If you know a place/area that has various types of hills with little to no traffic, practice going up them.
5) Down-shifting is your best friend. Unlike an automatic, a manual can not only engine break, but slow itself down by either down shifting into the next lowest gear, or simply taking your foot off the gas pedal.
6) Neutral is your other best friend.

With it being your main way of transportation, you will learn fast. You'll have to. Just remember; whenever you flub, stay calm, turn your car off then start over again.

Good luck, and have fun! 

I learned to drive my stick the day before I bought it. It was so much fun!
I learned that by going up to 3/300 RPM its time to switch gears.
So, first gear switches to 2nd pretty quickly.
When I turn corners (even to this day) I automatically switch into 2nd gear, because by the time you start driving again you're in the MPH range of 2nd gear to start driving again smoothly. Works everytime.

When you're going to stop, and you know you have to (stop sign etc.) Take it completely out of gear, and just use the brake. Don't confuse yourself if you don't have to. Slow down to a complete stop, and then pop it in first and either use that gear to get up to the light or stop sign - or to go.

Best advice I can give about learning stick, is to NOT worry about what other drivers think about you. The more you do, the more stressed you'll get - the more frustrating the experience.

^^ Listen to peoplebefunny on #3 for sure. Don't worry too much about hills. Give it a lot of gas, let up on the clutch slowly, and don't get yourself flustered.

If you get flustered, pull over, breath, and start over.

If up shifting and down shifting (learning it all at once) is too much, just learn to upshift and brake.
I never downshifted until recently (to save on my brakes) and I've been driving stick for like 8 years, so its not a necessity, but it definitely helps later on.

So I guess all in all my advice:
*Learn to upshift and brake appropriately, then learn down shifting later after the confusion has worn off.
* At 3/3000 RPM change gears (turn down the radio, and listen to the hum. You'll soon learn to recognize it without worry.)
* Turning a corner and don't know what gear you'll be in after?, Try #2. Never fails me.. unless I'm speeding like a bat outta hell. =)
* * *When you know you're going to a stop sign, eliminate confusion of gears go into neutral and just use your Brakes. (I still do this sometimes, so its a seasoned manual driver thing, and a newbie thing. =D)
* Don't worry about other drivers.

* Hills come with practice.

Good luck!! Sounds like fun! Be careful! 

When you're going to stop, and you know you have to (stop sign etc.) Take it completely out of gear, and just use the brake. Don't confuse yourself if you don't have to. Slow down to a complete stop, and then pop it in first and either use that gear to get up to the light or stop sign - or to go.

That is what my parents taught me... then when I was taking my driving test the guy mentioned to me that every time I did that I was losing points. (He waited till after I had done it 4 or 5 times before saying something.) According to the DMV dude (in OR) you are not in full control of the car when you are coasting in neutral, which is why he docked me points. Instead you are to downshift to a stop. Because of this I ended up getting the bare minimum for a passing score. If he hadn't said anything at all, or waited for me to do it one more time, I would have failed! I also found out afterwards that if you stall the car during the test it's an automatic failure. Be glad you're not 16 and learning for a driving test!
Needless to say, even though I had to change my stopping technique in the middle of the test to please the DMV dude, I went right back to stopping while neutral. 

When they say "take it out of gear" they mean put it in neutral. What neutral gear looks like. It's that line in the middle. I strongly advise putting the gear in neutral to come to a stop. But, and I've done this a few times, forget to take it out of neutral. Always check your gears! 

Per My Daughter This is WHY they Have Automatics

But Practice Its not hard once you get the hang of it youll love it
Practice on a driveway thats got a slant to it if rolling back scares you
I Drive Semi's now thats alot of shifting Good Luck 

Practice in your mind. That's what worked for me. It's the footwork and knowing when to shift that is the trick. And treat second gear like you would first gear - you will switch between 1st to 2nd and 2nd to 3rd faster than from 3rd to 4th and so on. Get to know your car. I had a 72 Karmann Ghia as my first car. Trust me, they'll tell you when you're doin' something wrong. :) I miss driving stick! You can rev the engine and roll back and forth to freak drivers out. Good times! 

All the advice you've gotten here is great! These are all lessons my dad taught me when I was learning how to drive. He made me learn driving stick before I was even allowed to touch an automatic. I'm grateful for that and I LOVED it. Good luck and deep breaths. :) 

I usually start people by driving backwards, using mirrors only... then progress to parking (backing into spots), then parallel parking... only then do I let them drive forward.