So basically this is the main thing, I feel I'm confident in shifting gears once I'm past 15-20mph or whatever, but for starting:
a) Feet on both clutch and brake.
b) Release brake.
c) Slowly release clutch. And there's basically three positions the clutch will be in, 1) the car acts like it's in neutral, 2) the car will move along without any gas needed, 3) the car will stall
The other thing I wondered about was if I'm coming to a stop light, do I push down on the clutch the whole time that I'm braking, or just until the very end? Is there a difference?
Release the clutch until it gets to friction point. The engine RPMs will start to lower, and depending on the engine, the car will start moving by itself. It does it with my Jeep, but didn't with my Amigo. Give it gas when you feel it start to engage. I've done burnouts unintentionally before, even after driving for a few months...don't worry about it too much.
If coming to a light, you can press the brake first (to slow, don't floor it), but yes, the clutch needs to be in when brake is engaged for a complete stop. I usually coast in neutral, but you can slap it into first gear or whatever you please.
It'll take getting used to, and if you can get it out of the lot, go into the first empty parking lot you find and start/stop and get a feel for the clutch.
Once you get used to a clutch, it's better to just dump it instead of riding it. It's the space between engaged and disengaged when the wear happens.
When you come to a red light, leave it in gear until you get to ~750rpm, take it out of gear, and sit there with your foot on the brake only. Don't engage the clutch until your ready to move. Holding the clutch in wears it(throwout bearing) unnecessarily.
It is not going to wear it that much, if at all. It does not wear it out NEARLY as much as people like you stress, at all.