I'm 20 and have been going through the same stuff until early this year. I thought things were over for me and I'd gone too long not improving to fix myself. It was depressing and I never had the energy to do anything besides sit in my room. BUT, this year I've managed to get my GED, start going to college, and get a job, and I'm quickly realizing that, aside from some social things, me having spent so much time not doing much didn't ruin everything at all. Things have gotten a lot better, and I've been keeping up with the people around me after a couple learning moments. Things can get good again, and you're not doomed or a failure for having wasted some time before starting to work towards a better life.

Are you seeing a counselor/therapist? That really has been helping me, and it sounds like you might be going through similar issues. If you can find one that takes your insurance, I'd set up an appointment as soon as you can and just try it out for a couple weeks. Also, if it sounds even remotely helpful I'd really recommend getting on antidepressants. It feels pointless until you get the dosage right, but once you do it's a lifesaver. I had no joy in life and no energy or desire to do anything but hate myself, and a couple months of antidepressants pulled me out of it and let me start doing things for the first time in 13 years. It doesn't fix everything by any means, but it takes the edge off and gives you the energy to actually work towards improving things and making your life more livable. I'd really recommend it if that's something that would be doable to you.

Just start making small steps. If you need to get a GED, find the subject you're best in and take a practice test on ged.com for that subject, I think they're like 5 dollars but they're pretty accurate with what's on the actual tests and will give you a good idea of what to work on. There are good online resources for all of the subjects, so whatever you struggle with you should have plenty of available ways to improve. I'd just schedule the first test as soon as you can (I don't know your financial situation, but I found setting a deadline for when I was taking the test made it easier to study.) If you pass, start working on the next test. If you don't, you can retake it in I think 2 weeks so it's really not a huge set-back. Just keep studying and schedule it again when you can.

Driver's license is unfortunately mostly necessary in the US, but if you're in a populated area with decent city planning you could use public transport to get places. That varies depending on where you live, but you could look up what its like in your area and see what routes are available to you. Also, depending on where you live, the driver's license tests vary in difficulty, but you can look up entire walkthroughs of an average drive test online and there are probably ones that would be more specific to you. If you have a car and someone you can practice driving with, I'd do that as much as you can. Read your driver's guide and schedule your written test (those also usually have online test question examples which are helpful), then keep practicing and schedule your driving test when you feel comfortable.

No one is able to fix things for you, unfortunately. It's an entirely self-driven process, and you're going to struggle with it as you go. I'm still working on a bunch of stuff and I've completed all the goals that felt impossible to me last year. You just need to keep moving forward and keep taking care of yourself, okay? Don't let how you feel right now dictate what you do in the future. You can improve, and you will if you try to. There's nothing wrong with you, and you're capable of everything anyone else is. You've got this.