If you can keep with whatever momentum you have going right now, it would be a lot better than getting caught up in the system. I have disability support, it's probably dif in the states, but at least here, it was time consuming to get on and I know a lot of people who don't get approved despite being immensely qualified for it. If you already have or are close to getting a high school degree, then you already have a decent shot at being able to work most entry level jobs, even if you don't want to go to school right away, and there are services designed to help you succeed in education and workplaces.
If you feel like you do really need disability support, like you won't be able to work because your symptoms are too severe or you won't be able to handle school, that's okay, I got on disability support when I was 18 and I know other people who have too, but that's really looking at your life and asking if you're capable of even the most basic of work.
I don't know how permanent disability supports are in your state, but I know where I am, ODSP makes a lot of effort to support people going back to work or going to school with supports in place, you can go off of it if you get a job that puts you past their income cap, and you can get back on it quicker and easier if you've been approved in the past. So for a lot of people, esp young people, it isn't necessarily a life sentence.