Mechanics

Im a junior right now my fastball is in the mid to high 80s i throw a change up and slider or curve.

usaually when i pitch i do really good rarely let up a run. lately i have been starting out lights out in the first two innings and just having an error in the field and its all down hill from there.

Yesterday i went 123 in the first two inning and in the 3rd i walked 2 in a row and hung a curve ball and got rocked.

any advice the fall seasons over and its eating me alive having to wait to get into a game again and redeem myself

my coach tells me my break is wrong and im not pulling back with my elbows

ANY MENTAL ADVICE or mechanical advice you can give me??? thx