You will be a bad driver at first. Everyone is a bad driver at first.
If your teacher doesn’t work with your learning style (some people want to be gently coaxed, others want someone stricter), try to find a teacher who does.
There are no stupid driving questions, only stupid accidents.
Don’t be one of those drivers who does manual stuff (cell phone, makeup, eyebrow waxing) while driving. If you are driving and you are not in gridlock, your task is to drive. Do that other stuff when you aren’t in a 2-ton vehicle surrounded by other 2-ton vehicles.
Most drivers forget the little things they have to memorize in driver’s ed, and it shows; the only people who obey that whole following-distance thing are the dorks (and I was one) still in driver’s ed mode.
Here’s the thing: While those recommendations can sometimes be disregarded, regarding them will hurt you much less often than disregarding them will. Sudden stops are bad for your car and bad for your gas mileage, so if you follow a safer distance, you won’t have to brake as hard (possibly at all, in some cases).
When a bigger vehicle wants to do something near you, get out of the way. Those vehicles are harder to get going and thus harder to get stopping.
Be nice to trucks.
When you crash, and you will crash, take a few breaths. Don’t get out all frantic. Relax, make sure your shoes are tied, and get your insurance information calmly. And (every car insurance company will tell you this) don’t admit fault. Don’t say anything like “Wow, I just totally plowed into you, huh?” That’s fault. Exchange information, check your vehicle for damage (especially near tires and to your signaling devices and mirrors) and go from there.
People driving behind you will be annoyed that you aren’t going 10 over. As long as you’re driving a few miles within the speed limit (assuming no visibility or operability issues), you’re fine. Most people end up driving about 5 miles over the limit, so anyone who isn’t doing that is instantly a “bad driver.”
Until you get the handle for driving, be cautious to a reasonable fault, but not nervously so; worst-case scenario, it takes you a little longer to get places and you don’t crash.
Expect driving to become less and less fun until it is a chore. I have been driving for seven years, and I have driven only a handful of times since January. I don’t miss it at all.
Younger friends will want rides. Older friends will want rides (see: driving stops being fun). People will want you to do things for them. Don’t be an idiot. If anyone tries to get you to do something “cool,” by which I mean illegal and/or dumb, deposit them where you picked them up and continue about your business. They may tease you for that for a while, but if you get caught doing something stupid, you get caught. They’re just in the car.
When you get in the car, make sure you’re set. First, this prevents you from having to go back and get something else. Second, it means you can see what you should be expected to see.
Check your oil, tire pressure and undercarriage regularly.
The best way to not run out of gas is to not get below half a tank.