Am I Fat? Please answer?

I am 13 years old, and i consider myself fat. I weigh 150lbs and 67kg and i am 5'7. I play rugby all winter as a prop and biking in the summer. I do weights everyday and when i first started i had truoble lifting 10kg but now i can lift 35kg easy. Thats bench press everyday. In all my classes i am the best arm wresler by far but you cant see my muscle. I can use but just cant see it. There is a small lump on my arm snd my moobs have been going down. I also do leg workouts aswell as upper body. So am i fat because people say i am at school if i step on their toe or somthing?