It's much more difficult to still make friends the older one gets. Everyone struggles with this to some extent.

I am very much in the same boat. I realize I have underachieved in comparison to university time friends (but I am still in touch with some on the upside) and also paid a high price for my frequent changes of environment, which are in turn a consequence of my inability to fit into any work place. At my current work I am in the worst career dead end ever, and it's all because of my social shortcomings again. Plus the vicious circle of low motivation due to lack of positive feedback and opportunity.

There are no real solutions BUT: one can still work to make life a little bit better every day, or one can make it all worse giving in to a negative attitude. That's again same for everyone, not just people with Asperger's.

See Jordan Peterson's 12 rules for life #4: compare yourself to who you were yesterday, not to who someone else is today.

Do something to bring your life in order every day, and then give yourself a little reward. For instance, if I am not too depressed I can delve into one of my special interests, like Ham Radio. It's a high Aspie proportion hobby for all I can tell, all about communication on the surface, often embraced by people who can't communicate well. Or I might learn a new programming language sitting in my gym's lounge wit Spa attached. There are support groups in town, one run by community social workers. I do most of my activities on my own, and usually I enjoy them.