The main issue is that the NHS will not allow Buproprion / Modafinil / Stims even if someone actually needs them. SSRIs are not a cure all, and they generally dont work in people with fatigue / lethargy as any phschology text book suggests.
I doubt very much that the main issue is the NHS won't prescribe some drug you've decided will work best.
Many of the medications that would likely work for my mental health also curb appetite. Yes they have the potential to be abused as well. I don't agree that should prohibit them from being prescribed after 6 SSRIs fail to do anything.
I've done all of the things I can manage myself.
I doubt that as you're focused on getting a pill to solve things for you, perhaps your expectations re: SSRIs were misplaced, a pill alone isn't going to solve everything.