A sure fire way to fix this is a piece of fishing line with a chemically sharped hook attached.
What you do if you are in the habit of lowering the bow at the shot you attach the fishing line to the bottom limb and put the hook on your bottom lip and vice versa if you lift the up as you take the shot.

This is in fact an old golf coahing tip to stop people from lifting their head to see where the ball is going before finishing their follow through.