Sorry to hear what you are going through.
I was badly bullied in secondary school. It was a time when school's didn't care, even though both my parents went up, they were told that I needed to toughen up and prepare for the real world. I was taken out of school and I started working full time. It was a huge relief.
I was and still am badly affected by it all. Therapy didn't help it just made me relive each and every second of suffering I experienced.
It was very long ago but I did see one of my bullies online protesting about bullying, I nearly vomited, I was in foul humour for days, thinking what she put me through. People would say things like, she obviously regrets what she did and is making ammends, but that doesn't help me. her and her cronies never apologised for the torment and trauma they put me through.
I don't let people get close to me now, never have after that, always a fear of people not liking me, always questioning what I've said in case I've upset someone.
Unfortunately for me it never got easier, I still have the scars physically and mentally. They are all still friends as I see them on social media at big events in their lives and out and about. They ended up having over 30 years of friendship, they were my good, close friends when they turned on me for no reason at all. I do not miss them, but I missed out on so much because of them, like debs /prom, reunions, etc