How to Be a Better Baseball Hitter

Steps
Just be calm.
Dig into the box and get into your stance
Don't be trying to figure what the pitcher is throwing just be calm
Watch the pitchers wind up and follow the ball (Exception: if the pitcher is tipping his pitches, pay attention and stay relaxed).
Keep your weight back and swing.
Don't move your head, keep it on the ball
Make solid contact and you should be a good hitter
Go to the batting cages regularly. During season, go on weekends and days when there is no scheduled practice. Ask your coach(es) to accompany you to receive live feedback.

Tips
Weight Back
Be calm
Don't try to figure the pitch unless he is tipping his pitches.

Warnings
If you mess up, don't get disapointed. Just dig in and do it again