I have to go along with Dan. Wheelies are fun and they look cool, speed is also fun under the right conditions. But, you need to learn how to RIDE the motorcycle first. There's a lot more to it than wheelies and going fast in a straight line.
It really scares me to think of someone doing those two without learning the rest of it. Even more than others that don't know how to ride yet. That's because people going fast and riding wheelies (or trying to) are MUCH more likely to get themselves into a situation where they need good riding skills to get themselves out of it. Mistake + lack of skills = crash.....simple formula.
Forget the high speed stuff and wheelies for the time being and really learn to ride. The rest of it will come naturally. DO NOT let friends influence you to do things you aren't ready for, and keep the testoserone in check. If it seems like it's too dangerous or could be, it most likely is. Don't be a squid.