I broke up with my former partner (of 13 years) 2 years ago, but due to covid, finances (shared mortgage etc) and "convenience", I am still trapped living with him. We have a 6 year old, who he does the bare minimum with, and he's now taken to swanning off with his girlfriend without letting me know because of course I'll be home anyway to look after our son. Any time I go out, I run it by him before confirming plans to make sure it's convenient, but I don't get that same courtesy. I'm also usually the one who has to arrange nanna time with his mum. I also do very nearly all the household tasks. Honestly I was sick of being in a relationship where I felt invisible, and I'm so sick of living in a house where I feel disrespected. I want to maintain some semblance of a friendly co parenting relationship, but if I don't get out of here I'm probably going to reach a point where I find that very difficult.
Right now, I've just passed my driving test, I'm trying my best to find a job, now that my son is consistently in school post-covid rules, but it's pretty hard to find something within school hours, and my ex is out of the house from 7:30 until 17:30, so he can't do either of the school runs. I'm also still sharing tax credits as a couple, but I know I'd be better off on single UC, but I've no idea how easy that is to move to when you still live with your ex.
Can anyone give me advice on moving from a joint to single claim when you haven't yet moved out, finding a mum friendly job, or any other advice that'd help me get in a position to get out of this house ASAP?