How long have you been together?
Your barely closer to his age than his kids. Why is not getting child support from the other parent?
Why are you even allowing yourself to be used for childcare and transportation?
If you have to put off getting a job then he has essentially trapped you with no way out.
I also saw he hits his kids and swears at them. He does not sound like he communicates well or parents very well. You last post said he also snaps at you.
Your worth more than this!
You are!
There are people in the world that will love your friendship and company just because you are you. Partners out there that want nothing more to communicate open and honestly with you, only wanting your company in return.
He isn’t the one girl.