I think if you have your bodyweight off the bars (always over the BB as I’ve said), you won’t have a death grip. Like said, start slower and in control and focus on body position of keeping weight on your feet (over the BB). heels down, wrists down, squat down will help you prevent being thrown forward and eliminate death grip (levers up, 1 or 2 finger braking, whatever). The same principle for drops and other stuff, weight on the bb and chest up will keep the bars and front end up (you will not nose dive if you keep your weight centred over the bb and chest up). Occasions you need to move outside that BB weighting would be manuals/bunnyhops etc.