My sister has schizophrenia and my mum has undiagnosed bipolar - no one really remembers my traumatic childhood but me.

I (23f) have a sister (24f) who has diagnosed paranoid schizophrenia, bpd and other things and has lived within mental health facilities since she was 15. She is currently in rehab and is doing so much better than before; I'm very proud of her. My mother most likely has bipolar disorder due to the behaviour that she's displayed my whole life. She doesn't think she has anything and refuses to get a diagnosis and support. Anyway, the reason why i bring this up, is because I mentioned to my sister today how it was cool going to secondary school (1 of 18 schools I've been too btw) with her when i was younger, even though it was for a brief period (5 months), it was still cool. She doesn't remember that i ever went to that school, even though we would travel there together by bus everyday and would always be around each other - she has no recollection. This is just one example of things that she can not remember. Majority of our childhood she says she can not remember. I can understand her blocking things out due to trauma or her schizophrenia. It’s just frustrating because my mum forgets my childhood, denys or downplays things all the time, which i think may be due to shame. And for the majority of my childhood, it was just my sister, my mum and I so the fact that I’m the only one that has a memory for how things have happened, is heartbreaking. It feels like my trauma never existed, and that i have to hold onto these memories as I’m the only one who fully remembers. It’s like I’m grieving the family I once knew, even though they're still alive.

Also, i can't really talk to people about my childhood because of how extreme everything was and I never want people to think that I’m making up a story about my life.