On another note this toxic, bullying culture seems to be such a thing these days. Not sure why?
There are two sides to every story. I don't deny that there are some very toxic and bullying people in workplaces (and elsewhere). But there are also people who scream bullying when what is happening is normal and legitimate management - they simply don't like being pulled up for under-performance or other unacceptable behaviours. I see both in the workplace, both as a manager and as a union rep. Having done both those roles for many years it is weird - decades ago it was almost impossible to get anyone who was being bullied to complain, and nobody talked about bullying (which was wrong), but equally nobody said that any attempt to manage them was bullying. Now it seems that there is an increase in bullying reports (which is great) but a corresponding increase in claims of bullying that are simply not bullying at all.
I suspect that this is "bad back syndrome" - people legitimately may have bad backs, but because bad backs are hard to evidence, everyone wanting to get out of XYZ claimed to have a bad back. Within no time, nobody was believed if they had a bad back and "bad backs" became a joke. The same thing is beginning to happen with bullying, and it does concern me because it diminishes the real toxic situations by the number of false claims. And honestly, I see many more "false" claims than I do real ones. For example, literally almost every single person being pulled up on a disciplinary suddenly discovers that they were being bullied. Being put on a PIP - it's definitely because you are being bullied and has nothing to do with your performance.
That said @Crazydaisy21, have you made a formal complaint about the bullying? It's hard to know what "no-one will do anything about it" means if you don't explain what is happening and what you have done about it. If you are that miserable that you cannot see any other option than to leave, and if you can't or won't fight it, then I would honestly say that if you are in a position to temp, hand in your notice and go off sick. I don't generally suggest that people throw a sickie, but if you are intent on leaving and nothing would change you mind, then it's not worth the hassle of working out your notice. Put "occupational stress due to bullying" on your self-certification, and if you need a fit note after that, speak to your GP about this and get them to write the same thing are something similar.