Is there a patron saint for people who self harm? Mainly cutting?
Saint Dymphna is the patron saint of the mentally ill. I do not know of any saint for self-harming and specifically “cutting.”
In the booklet, “The Wonders of His Holy Name” by Paul O’Sullivan, OP, published by TAN, it’s mentioned that St Jane Frances De Chantal carved the name of Jesus on her chest with a hot iron. This is the only time I have read something like this about that saint, (and I find that sort of “mortification” disturbing) but I have also read that she suffered from depression and was a good saint to invoke regarding that affilication.