My season has recently ended and now we are going into all-stars. Im on the 13 year old all-star team. For some reason my fastball has slowed down to around 40-45 MPH. My usual 4 seamer can be throw around 60 to 65 MPH. I was pitching in the all-star game and didn't know what to do. My fastball was incredibly slow. It was then when i started to use my curveball. It worked great and was rarely hit, but I'm afraid that I'm starting to throw it earlier than i should. Is this True....?