Longterm chastity question.

Any whitebois where that are into long term chastity? I have an issue where at night or in the mornings I want to take it off and edge. But I want to make my penis limp and shrink. I need any advice from anyone who stays locked and can cum while caged. Or any tips on triggering thoughts about big black cock while im at work while caged. Or if anyone knows any good BNWO/BBC hypno I can listen to while im at work.