Former psych major here.
Memory is very fickle, for everyone, including people with no mental health concerns. False memories happen all the time, to everyone.
You're going to be fine.
BTW, I have OCD-like symptoms, so I know how much that sucks. No fun.
Also, I've had a few psychotic breaks, and I am doing fine now. I have my masters degree, I'm working on getting into med school...it's been hard, but it is happening. I have sporadic hallucinations frequently still, but they don't bother me.
Everything is gonna be alright.