How should i move on

Hey i been working at this job for a couple of years and have a poor reputation.

I been wanting to become a better employee but i deal with alot of disrespect because i been in alot of arguments that almost lead to fights because i was bullied for 2 years at this job and had a poor impact on my mental health.

My supervisor make jokes about firing me, calls me all type of stuff and i know it because our history have been nothing but poor energy between us.

Made friends at work which was a mistake because they make fun of me behind my back and show bias to each other.

So my last argument i decided “ok i wanna improve my life and do better so i decided to separate myself from all these so called work friends and stay to myself “ its too late and i should of been doing this but i think its time i remove myself for my own well being because i get made fun of alot behind my back and it messes with ne.

How would you guys go about leaving a job that is bad for you ans toxic towards you and make fun of me,my life and what i post on my social media.