No idea if this is in any way what you need right now. But i really love TheraminTrees videos about behavioral disorders like narcissism. Especially Part 1 and Part 2 about his experience with a cluster B (which narcissism falls into) parent.
This channel has given me many interesting insights into my life and the life of people around me.
Obligatory "dont take psychology advice from the internet at face value" and consider talking to a therapist if you feel like your relationship to your mother is significantly fucking up your current and/or future life.
You are not responsible for your parents happiness.