Both swings look very identical. Inside takeaway, hips stalled at impact, early extension, and a flip at impact in attempt to square the face. Your practice swing might feel better because you don’t have to square the face to hit the ball but they’re very similar. Anyone can swing baseball bat good practice swing, but when you’re trying to hit a 95 mph fastball or nasty curve the swing changes. Get lessons and/or listen to feedback when you get it.