I don't know what to do

For context: Im 16. I've been doing this for years. I also have a really shitty eating disorder. I don't want to die rn and I'm not actually suicidal.

I literally can't feel anything anymore and I've started going deeper than I usually do. I don't know what to do and I'm scared that I'm going to go really deep just because I like the pain and scratches aren't helping anymore.

I feel like I should tell my psychiatrist and therapist but I don't know how. Please respond if you have any advice at all because I really don't know what to do.