Struggling with Imposter Syndrome in Grad School Applications

when my depression was at its worst, i used to say “no one gets it”, which probably wasn’t true. but right now in my life, i’m at a point where almost no one gets what i’m going through because it’s just… so specific. i have a few friends doing the same thing, but it’s hard for us to care for each other when we’re all going through this on our own. to be clear… this is about making architecture portfolios for grad school applications lol but it literally fills you with imposter syndrome for hours a day to the point that it’s unbearable. it makes me doubt everything else, and it makes me feel like my friends aren’t really my friends. it really is triggering my depression and i’ve been having thoughts of self-harm to try to manage it, which i haven’t done yet but idk how i can keep myself from it for the next 3 months if it’s just going to get worse. my supports can’t help me on this: my boyfriend and mom both try to but they can’t understand why i’m so stressed and upset, let alone what to say to try to make me feel any sort of better right now. i have to keep doing it too, i can’t just get out of it. UGH, i am scared and sad and stressed and alone.