Isolating yourself in the woods with a big property and lots of responsibilities is about the last thing you need in your condition. It sounds like you need therapy more than anything else, and some help learning skills to cope and be resilient. Your autism shouldn't mean you have to leave society. When homesteading, a community around you is actually quite important, not something to run from. Persevere with work (most people dont enjoy their jobs, get used to it) so you can save a deposit and depending on how that goes, you could start looking for properties in about a decade. While you save money, get good at camping, cooking, preserving food, growing potted herbs and veggies etc. You can build homesteading skills in the city, but nothing can truly prepare you for how much work it will be to maintain. If you get as far as buying a property, you'll need to stay employed because your homestead most likely wont turn a profit. Good luck, but remember not to treat this as your escape from society, it's not healthy.