I do the exact thing but my brain takes it as the knife takes too long use your fingers so it is slower. I have scars all over my fingers and arms from this and I gotta say it is self harm and I am sorry you are went through that I still do that.
I can relate. Just had another five or six weeks of what I have come to call "the horrors", where 24/7 during the day I dread the night, and during the night dread the day. And what am I worried about, or what have I to worry about? Nothing. Great family, loving family, no financial woes. Sometimes catching the News and seeing scenes that could break the hardest heart.
You are not ranting about nothing. As I have been told, again and again, IT'S GOOD TO TALK. So I talk - or tap on my Kindle - trying to be positive, just sharing.
On the up again, but wary of the "horrors" returning.
Sincerely, stay strong. The light is there, which is always our own - yet can be shared with others.