I think you could trust your family and friends to worry about you. Think of it this way, if they were feeling as badly as you are and did not confide in you or ask you for help-how would that make you feel?
Let them decide whether or not they want to worry about you.
He didn't sound like a very good therapist. Who cares how often you're doing it, the point is, you ARE doing it.
Could you try to find a new t?
It sounds like you've given up on yourself and you cannot do that. You just can't.
You cannot be indifferent to whatever is propelling you to cut yourself.
Please, try to find a new t if you absolutely feel like you cannot talk to your family or friends. It's got to be one or the other.
(((((((((BackandForth))))))))