I am 13...5'7", like to get more power , any advice?
You have a nice swing, but if you want more power learn rotational hitting.
swing like you mean it....and don't over think it, your movements are not nice and fluid. Otherwise, looks pretty good.
try to not think while at bat if you practice a lot it will pay off
this may not increase power but it will increase your resultsyour hands start out in a bad position.you need to get them reasonably back because once you start seeing 80+ the ball will get in on you alot quicker. Just a little tip
from the looks of it i see that you dont really rotate your core that much and you drop your hands and you need to get more explosive
Don't start out with your hands on your sholders and turn your body more.