Im really good hitter , I had a phenomanal freshman year on varsity, and my sophomore year was horrible?

im really good hitter , I had a phenomanal freshman year on varsity, and my sophomore year was horrrible it just seemed like my hitting disappeared but i saw glimpces of it at times. I know how good i can be , and im not giving up until im back where i should be if anyone has suggestions or anything . id really appreciate it thanks.