I do fortunately have experience and transferable skills in other industries, and have been applying like a madman to get out of this toxic pit of exploitation. Oh I'm not saying an office or admin job will be any easier or free of its own problem, but I'll at least have consistent hours, a schedule that isn't ever changing, and some semblance of change.
I do have the fortune of being in a workers union but as folks have previously pointed out, any attempts at making the hospitality workplace a more fair or equitable industry is kind of hamstrung by a broad disdain for it by the British public. Its a catch 22 that I don't think will ever improve, only get tighter until the heat death of the fucking universe.