Are you seeing a therapist? It's possible your mother is a narcissist and they need to control everything and they tend to be all about themselves and your needs and feelings are not important. They typically have to have all their needs take priority and expect others to be loyal and service their needs. They are not good parents and tend to have children for selfish needs. Typically your needs are an imposition to them. They prefer others be who THEY need them to be. And they can rage if they don't get that from others.

PTSD depression is different. You need help and support from a therapist that can help you understand that and learn how to distance from those who are unhealthy for you.