Help - can't stop coming over the top

What worked for me was to slow everything down and not try to thrash the ball. I practised getting to the top of the swing and start the downswing with a small hip turn and only allowing the arms to come down, so no shoulder turn back. Keep watching the ball right through impact and I found that the shoulders squared better as I wasn't "throwing" the right shoulder at the start of the downswing which, in turn, throws the club head out and promotes the dreaded out to in swing path