Hey man. What I would is just consistently work on the left hand drive and lay-up. Forget about your right hand for a week. Just train your left hand dribbling hard into the lane. Then when that feels better, just work both hands equally. Remember that you should also just improve and even your ball-handling. You can do this by dribbling up and down the court with both hands, or doing dribbling drills like figure 8, spider, and dribbling maneuvers with both hands.