Is it bad that i self harm for attention?

I'm 18 and i have no friends. I haven't had any close friends in years and I've stopped talking to the friends I had at school. They would bully me, leave me out of group chats and would hang out in a group without me. No one else talks to me at school. I began to cut myself last January to see if anyone would notice me and ask me if I was OK or talk to me.i cut myself in more obvious places and I began to cut my hands. No one talks to me and I can't stand going into school anymore, I only go in maybe 1 class a day or I skip it entirely. I just wish I had a normal life and was able to make friends