wrt self esteem, it's a very difficult thing to acknowledge, or was so for me anyway, to realise that your own low self-esteem was the reason you chose a rubbish man....... and you have done that here on this thread, at 22 (?) I was about 36 before I had the self-awareness and the honestly to assess my own mistakes and to look back and realise that my low self-esteem was responsible for my catastrophic choices.
I was a lot older than you are now when I got involved with my x (children's father that is). The x before him had dumped me with a brutal character assassination which wounded me deeply and scarred me to this day.
Intellectually, rationally, you know it's not fair, but you don't believe that you can demand more. And by demand, I mean 'get'. Demand, get, deserve, they're all so linked. You deserve more but can you demand it and get it?
First off, read Sherry Argov's book. It is called Bitch or something, a really off-putting title, but it's a really really accessible book, the basic message is spot on. Identify the beat of your own drum, and then march to it! Your beat!
I got in to something called EFT for a while, I need to pick it back up.
This is a much simpler form of it, and you might think I am mad, but go in to the bathroom and look in the mirror and look yourself in the eye and say "even though i am powerless now, I do have strength, I do have power, and I can work hard. I am worth more than this. I will change things. I deserve respect, and I deserve a better easier more rewarding life and I will get that'
Please indulge me! Please do this every time you go to the loo!
You probably aren't in the position to have psychotherapy right now. I had psychotherapy after leaving an abusive relationship. I realised at psychotherapy that I had cared more that other people believed I was happy and I was prepared to endure a miserable life so that other people would believe I was happy and normal. When I realised that I had prioritised appearing to be happy over actually being happy I was shell shocked. And I was in my mid 30s then, so I'm really impressed with your self awareness and honesty.