My son has been wrestling since he was 9, he is now 14. He has been very successful since the beginning, so when he announced last year at districts he didn't want to go on to state....I didn't know what to do. Coaches talked to him, we talked to him and we come to find out he was just wore out. I don't know if burned out is the same thing, but his body was just wore out. He also felt the pressure getting to him and that with being so tired made him feel like he didn't want to go on.
At his coaches and doctors advice, we started him on coconut oil pills. Totally natural and believe it or not they worked. He got his energy back, his drive back and his want to wrestle. Could have been all in his head....don't know.
We were prepared to let him quit if we really thought that is what he wanted, but we didn't. His coaches had seen it before and knew what was happening.
I don't know if this helped, but thought I would try.