I moved out because my mom picks fights when she's stressed. I've helped her financially and she's blaming me again. I don't live with her. How is it my fault that she's stressed and that she calls me names?

I'd like to start by saying that I'm sorry that you're going through this and I hope things get better for you. To address your question, just because she's blaming you for being stressed and calling you names doesn't mean it's your fault. It's a coping mechanism. Everyone has coping mechanisms to deal with stress. Some people have healthy coping mechanisms while others have unhealthy coping mechanisms. From the information you've provided, it sounds like your mother uses fights to deal with her stress. It doesn't have anything to do with your being at fault. So it's important for you to realize that, just because she says so, you're not necessarily at fault here. Your mother is under a lot of stress and this is her way of dealing with the stress. Try to have a discussion with her along these lines and find out what's really stressing her out. Hopefully you can address the root cause of her stress. I wish you the best.