mad boxo, if i remember rightly you are 14. You should not even think about picking up weights until you are 16 and better 18. If you start lifting weights before then you will stunt your development. This also includes putting weight on. My advice for you on everything is work on the technical side of your game and wait to see what hand you have been dealt by the big man upstairs. I am 21, when I was 11 I shot up to 6ft tall, but weighed only 60 kg, by 18 I weighed about 75kg, but now at 21 I weigh 95kg as I had another growth spurt. As you get older your body will broaden and you will develop muscles without even trying to. If you force it then it really is not going to do you any good, which is why most gyms will not allow you into the weights room until you are 16.