How do I fix my goofy approach?

Hey all, I am a 6’0 outside hitter. I have a sort of lefty approach that allows me to get up high (Running 11’2), but when I use my right handed approach I don’t get up as high (Running 10’3). Also does anybody have any tips of how to hit with the same power at a shorter length? I have a tendency of hitting strong and long. Note: This is a youth league, not a club/school league so skill varies)