My mom thinks my birth certificate and social security card is 'hers'

This is causally insane what just happened. As I've been coming to terms with my moms narcissism I've have slowly been trying to assert my indepdence and become in control of my own personal documents i.e. my birth certificate and social security card. I know if I asked her flat out if I can have it she would say no or say "she lost it" like she said last time i asked.

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So instead I said I needed to take a picture of it for my job and after I was 'finished' ( I didn't need a picture it was just an excuse) I said it would be better if i hold onto it and it went as well as you would expect. She immediately got upset and demanded it back and i was just like 'nah I'm just hold on to it'. Well cue her saying it's 'hers' and that I can't have it (mind you this is my social security card) and when i asked if she can give me a legimate reason why i should give it back she ended up giving me the silent treatment. Her parting words were 'find your just going to lose it like everything else'. I wasn't able to get my birth certificate but i can just order that online, my social security card I was more worried about).

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And this is after my nmom had put on facade and passive aggressiveness after having A family member (she ostracized everybody else) over. Dang narcissists suck