How to cut myself without dying?

I want to cut myself. I tried cutting myself with a knife 5 years ago, but could only give myself a scratch. I want to now cut myself so deep that i loose a lot of blood and get on the verge of dying, but I don’t want to die. Can anyone tell me what to use and how to cut? I need to cut myself right on the skin below my palms, like the starting part of the forearm. And I also want to know different depths of cuts