I think there are some really good guys here that can help you out. I am not very good at all with explaining what I teach on a keyboard. I believe in getting in the slot and getting on plane with the baseball. A short stroke that allows you to see it deep and then long in the zone with extension through the baseball.
What I do believe is the hitter has to have the intention to mash. He has to have the desire to drive the baseball.
I am sure some guys will come by here and give you some good advice and they are pretty good at explaining in detail some things that can help. I have to be there , see the swing and then put my hands on it. Good luck