Well, it's a bit hard to give much advice, because I don't know your personal circumstances, but I have a few thoughts, which you might find helpful:
1) Do you have professional support? There are some hallmarks in your posts of ongoing depression. Unlike AS, depression is a circumstance that might be responsive to medical help. Having a conversation with your doctor, and investigating options could be a good first step. Not all depression needs pills--a good doctor might be able to refer you to other services that can help; on the other hand, some depressions absolutely require pills, if only for a little while to get the brain chemistry back on track.
2) Do you have a focus for your interests? Work and school can provide a lot of help by giving your life structure. If your work does not stimulate you, then maybe volunteering, taking a course, or finding part-time work in a field of interest can provide that. Again, without knowing your circumstances, it is hard to know what to suggest
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--James