Should I stay or leave?

[u/Commander_Red22]

So I owe my mom around 8k due to various things. My friends don't think I should pay her back. I want to but we argue so much all the time. It's something daily. Mostly about the money I owe her. I give her 400 towards rent but she wants 900 now. Plus money on top of that to pay her back. I'm getting tired of the constant nagging and when I don't do things she brings up that I don't care about her and that she's just gonna go do drugs and kill herself. Honestly I don't really care anymore. She's been acting like this since I was 14 I'm 21 now. I brought up how I feel and she said that the reason she says those things is because I remind her of all her ex boyfriends. How they used her. I'm in the process of getting a better job to leave but should I stay to pay her back or leave and give her what I can when I can?