Is my arm F*****? Please help free +10 need opinions.?

im 15 right now and ive been pitching since i was 12 and i use to never have my arm hurt when i pitched and i threw as hard as i could every pitch but ever since 1 travel season where i didnt start games, i relieved literally EVERY GAME My arm started hurting pretty bad so i would ice it and i tried to throw curveballs before i was 15 (i know very bad idea) i didnt play last year and this year i almost every other game because im the best pitcher on our team, but my arm always hurts for days after i pitch its like i throw my arm out every game but i have to take ibuprophen before every game just to deal with the pain i usually go at least 5 inning we only play 7 but do you guys think i did anything to mess up my arm