There are a lot of mistakes that can be made by a pitcher; it’s going to happen no matter what. If you could eliminate mistakes all together you would be pitching in the show, but that’s not realistic. I am going to talk about minimizing the biggest mistake of all, leaving that fastball of yours right down the middle.
The best way to keep your fastball out of the middle is to throw the correct fastball to the correct side of the plate. You all should know that if you throw a 2 seam fastball to your glove hand side of the plate your natural tail will bring it back to the middle. This means that if you want to go to your glove side you need to throw a 4 seam fastball so that it will stay straight instead of tailing back to the danger zone.
If you are going to your arm side of the plate go ahead and use that 2 seam pitch, and if it is not on target at least it will tail out of the zone and be unhittable. If you continue to have a problem with your fastball tailing back to the middle you could be a perfect candidate to learn a cut fastball or cutter.