I've decided that I'm not going to be upset with my Mom anymore.
What made you come to that conclusion about your mom?
It's time to put our differences aside and move on.
I'm glad that you can put your differences with your mother aside and move on. You can have a healthy relationship once you put aside your hurt feelings and focus on the positive aspects of your relationship.
My Mom is a cesspool of negativity and I'm tired of her.
Sometimes the only right thing to do is cut off toxic people in your life, even if it's family. It might be painful, but your mental health matters a lot! I hope you can get better and eventually reconcile with her when you're ready.