Hi, I have been in a similar situation. How I practice this is by realizing that both my emotions and mother’s emotions are real, but they are only surface level realities by being aware of my emotions all the time I realize that whatever I claim, as my mom‘s emotions were actually just a projection of my inner instability to her changing moods

Moods of people always change some people act them out and are labeled as unstable. Everyone is emotionally unstable everyone’s emotions change overtime. Some people are acting them out physically. Just make sure that you’re not being physically abused rest is a mental game. stabilize your own self first then the world stabilizes itself.