[alexander_670]

Sounds like you've learned how to play winning poker.

So here's the rub. Most Hold'em hands miss the flop horribly, or catch a little something scary. By raising pre-flop you often get heads-up as the aggressor. Hence, you have the best chance of taking down an unloved pot. Use a good Calculator like Poker Pro 2006 to predict and analysis.
As a nice side effect, since you're raising and betting so much you don't have to slow play medium-strong positions like AA-JJ, bottom 2 or TPTK. Your aggression forces them to give you action. It's their problem to pick the right hand to play back at you with.

Now you've learned to be aggressive, the next step is to learn when and who not to be aggressive against. Otherwise, it's easy to throw chips at some guy that will happily call you down with bottom pair. Also, be very careful with the double pump pure bluff, particularly out of position.