I too feel you should tell us. Just for the fact that I don't like the idea of you asking us to disclose information that you won't.
I will answer your question
I use to cut on my wrist...after I went overboard once and did permnent damage to my wrist and hand, and starterd working, I tried my ankle. I soon realized my ankle got infected easily so I switched to my stomach. Now I have quit but I miss doing it on my wrists the most.