likely not a good thing to like the feeling of a blade on your skin. some alternatives are a metal cube. i can understand why you like it. but you need to not use something sharp in the even of an acsident.
this is where you do something adrenaline enducing that has lower risk. like go for a run(nobody wants to do that but its there). exersise. wait... seems like strenous movement might cause it.
Hungry for pain; The Sound of Silence by Reality; Is it bad that I self harm not out of self hate, but simply because I like the feeling of a knife on my skin; Prophet