Don t stop eating healthy. That is a healthy weight for an athlete. Muscle weighs more than fat, so it is not what you weigh. Trust me, most guys think it is better for you to be cool, fun sporty than deathly skinny. They can t play and have fun if you re hooked up to tubes at the hospital. You need to keep eating bread if you want to keep being an athlete. Carbs are good. Dieting at your age is bad.
for breakfast eat a healthy cereal with fruit in it its soooo good! [i eat wheat chex or special k with blueberries] and for lunch try eggbeaters [they taste just like real eggs excpt no trans fat or cholesterol and they are 99.9% real eggs] with whole wheat toast and for snacks try special k bars or if u really want something sweet u can eat candy like mike ikes or some other fruity non fat candy but not chocolate [although once in a while chocolates ok] and for dinner eat what u like but not red meat. chicken and fish are healthiest !! and drink lots of water!
Take walks, do push ups. Yeah maybe you should get something to go to a gym and go there on weekends or something.Eat healthy!