not to be emo or anything

I don't know who I am anymore. Everything I've ever been good at is slipping away, every promise I've ever made to myself has become useless and every goal and dream I've had for the future has become foggy and feels out of reach. I've been having dreams, last night I had one where I repeated the question "who am I" over and over for what felt like hours until the dream progressed. When it finally did I wandered around a place I'm very familiar with but somehow managed to get lost. I spent the rest of the dream in a confused state unfamiliar with who I was and where I was. I'm scared, school is no longer the escape it used to be but has become the place I want to escape but where would I go? it's getting harder to be happier nowadays, when I'm at school all I can think about is how much of a failure I've become and when I'm at home my mom reminds me instead. i hate it here, I hate myself and I feel so exhausted, but no amount of sleep is helping. I find myself repeating the phrase 'i want to go home" but i have no idea where that is. I'm so so tired