15yo being horrendously bullied at school

Is this a private school or academy? They have their own rules not under the LA.
My youngest had MH problems when she was at secondary school she went to CAMHS and for a while went to the hospital school but the minute she went back to her mainstream school all the hard work was undone.
I had to withdraw her in 2012 and home ed. Many people are against that but it made her more self motivated and she graduated last year with a first in adult nursing all off her own back.

Speak to the school before he goes back. If they don't cooperate I would withdraw him. They could let him work from home online. There is something called early college transfers where year 10s and 11s do there GCSEs at your local college you could enquire about this.

The most important thing is that his self harming doesn't start again. Does he want to go back to that school?

It is the duty of the school to deal with this and most schools these days take bullying very seriously. If they are getting no response I would go higher, even to the education department. It just isn’t good enough for the teachers to ignore it. I would shout from the rooftops if it was my son.

Have you posted on Mumsnet? There may be more users with school aged children who have experienced this problem. Just a thought.

sorry to hear that.
i've got no direct experience of this problem, which seems to be increasingly prevalent.
if the youngster is so adversely affected as to be self-harming, i think i would not return him to that school.
there are other schools. or sometimes tutors can be provided by the local authority, when there is a health need, as in this case.
how do you mean, he has half a year to do.