Dancers feet???????????????

I dance 26-28 hours a week. I am 15 and last year i only did like 18 hours. Suddenly my feet have been hurting so much. At times I just wish i don't have to get up for the day because my feet feel terrible. I have calluses pretty much where any part of my foot can bend (toe joints, side of big toe and pinky toe, etc.) Does anybody have a lot of experience with ballet feet and know small (or big) things that I can do to help?