Basketball is big men's game

Once I started to play basketball,I got hooked on it.Why?Because I set a lot of goals for it and am not willing to be defeated by others.What's worse,when I couldn't grow taller any more,I found that my peers grew taller than me gradually.
At the first time as my father taught me how to play a game,I started off by playing as a center.A few years later,because of my weight and height,I usually got crushed by my opponents in games.Consequently,I tried to play as a power forward.However,it didn't work.The men who I matched seemed like monsters.They were not only tall but also strong.Every time they scored over me,I had to be knocked down as a result of their powerful bodies.
Now I only play as a small forward because I don't want to be cruel to my body(If you want to score close to the rim,you have to prepare a good body for fight in the U.S.). My legs have broken for several times.I am not good at shooting.I can't pass and control the ball well,either.
What could I do?It is perhaps that there is no way for me to score.Actually,I know there is a way fits me perfectly but it is difficult to gain--slam dunk.
In these years,I have really been working hard for it.Believe in yourself,impossible is nothing.