I’m not being dismissive of your suffering. I’m simply pointing out that a health condition is not a qualification or a hook. You need to demonstrate fit-for-purpose. You stated that you haven’t been able to do anything since leaving high school. You’re expressing interest in some of the most selective universities in the United States (and you’re an international applicant). HOW are you going to demonstrate that you are a “fit”? What do you have to offer these schools, and how will you prove it?