2 things to try:
1) dbell presses with your palms facing
2) leaning laterals
.....grab ahold of a squat rack or anything heavy and stationary with your left hand. Put your feet close to the rack and together. Lean as far to your right as you possibly can and do a lateral with your right hand. You should be leaned waaaayyy over to your right and it makes the dbell lateral feel totally different.
Just a thought from my old bodybuilding days
B True