Weird question

I want my thighs to heal, and I can’t cut my arms because I already have big purple scars on them that I hate. I usually cut deep styro/beans but I decided to keep them fairly superficial and I’ve cut my stomach over the past week. Last night (I’m female) I cut my breasts don’t ask why lmao they are pretty big I hate them, and I’ve always known they hadn’t had much sensation on them but I cut loads about 10 “baby” styros and I swear I didn’t feel it at all. I could go to beans in one swipe and probably not feel a thing but I don’t want to because 1. I don’t want a big purple scar on them or 2. Stitches on my boobs because that’ll be awkward as hell. Anyone else cut on that particular area and not feel a thing???