It's probably a control issue OP... I don't know that, however, maybe if you can't jump off a 40 foot cliff into water or perhaps bungee jump or anything where you put significant trust into someone else, then who knows? Maybe you might try that... until you smooth out your nervous system... only an opinion...

Wine, and I am not a hypno-therapist... will simply dull the nervous system making it less edgy... I am not a doctor either...

Normally, for me... losing control, because I've lost it once or twice to the point of severe panic, or trauma, is something I give up reluctantly.