Hi Steven, I feel for you. It sounds as though you have been thru so much suffering and pain. I was bullied in elementary school and the painful memories have stayed with me to this day and I am 52 years old. I can't understand what makes a person want to hurt others. If you had your head slammed into a wall it makes me wonder what kind of damage that may have done. In any case I would find a different GP if you are not satisfied with the one you have. I have been on several different antidepressants. Not all of them work the same. Sometimes it takes a while to find one that works. Most people say the best treatment for depression is anti-depressant medication combined with psychotherapy.

I live in the US but what I have heard from other people on this forum is that there are some difficulties with the mental health care system under the NHS in the United Kingdom. Still, you have to try your best to get help for yourself. If need be call the crisis number, and be honest. If you are having trouble keeping yourself safe tell them. I wish you the best and I sincerely hope you can get the help you truly need and deserves.