Swing mechanics and mental mistakes

Make sure you have a plan.  Know what are you going to work on that session.  Work on one thing at a time.  Go slow and reset yourself after each swing.  Focus on quality, not quantity.  Your not there to get exercise. 

GoldenGraham34- Are you familiar with Steve Springer at all?

Age?

What do your coaches say? Are they able to help? If not try and find lessons somewhere even if it's short term they will give u drills to work on. 

I'm 13, only  playing select ball, and my coaches are pretty helpful with my swing mechanics but they don't help too much about being consistent. I think I might try that, thoug

I've heard of him before, but I don't really know who he is. What does he do? 

Quit thinking about so many things at once.  A lot of your problem, from reading your post, is too much is going through your head.  Lots of hitting instructors talk about hands, hips, front shoulder, back hip, etc.  Try this to start.  Anytime you hit off of the tee, soft toss, bp, short toss.  Don't watch where the ball goes.  Keep your head and eyes down as if looking right into the tee after hitting the ball.  Your front shoulder will always do what your head does.  Head down, shoulder down.  Throw your head, open up shoulder. 

Try clearing your mind before your swing and swing. Let muscle memory take over. Take deep breaths to after a bad swing and regroup yourself.

At 13 I believe some of what you are going through is normal.  I recommend you find the best hitting instructor in your area to develop proper physical and mental approach.

Here is Springers Twitter feed.  Good to follow.

https://twitter.com/qualityatbats

Good luck!