This year was when I was diagnosed, and since then I've had one manic episode and two hypomanic episodes. I couldn't remember hardly anything, I couldn't concentrate in school, etc.  Fast forward to about 4 months after my last episode, and my cognition is almost what it was before the mania. It's fucking wild to me that this disease can have such an impact on the way your brain works, even your memory and the core aspects of your brain. Crazy shit