sometimes i feel like that, especially when it comes to opinions because i can see so many sides of an issue that i can't make up my mind! But my sense of self is pretty solid. but everything is tied to my mood. if i'm depressed i feel like a horrible person, if i'm baseline i feel normal, if i'm manic i feel awesome. so i never know who i'm going to be when i wake up. that's what sucks for me, i think.

but you are not alone!