Plyometrics are seldomly used correctly. Many people overdo it and think "more is better." Training for your sport is more than enough right now. Keep playing basketball and hit the weights. And read the articles on the damn site! Follow a good program like Westside for Skinny Bastards (1 or 2).
And why do you keep copying and pasting the same info in every single post?
I'm training to get stronger, bigger, and faster for basketball over the summer. I am 14 years old, 125 pounds, and 5 foot 5.[/i]
I think everyone has figured this out already as you've asked more questions and gotten more advice in the last week than most others. Are you really who you say you are??