Hello - you are doing amazing ! Very very impressive that you have recovered so much. And medical literature says that this fast and hard push to get better makes a HUGE difference.

I am a 20 year survivor of a massive brain infection that also caused a stroke.
Like you I found zilch long term available help from medical / insurance .
But this is what worked for me:
Senior Center - exercise programs . I just showed up w my cane and ' adapted' the exercise to my ability. You may find ' chair exercise' program works
Continuing Education classes - non credit. Usually through a community college but location of classes maybe at public library, senior center etc... Great way to get out there and be with people and have fun. Ceramics, music, cooking classes ....

Brain Injury/ stroke support groups - see what is available locally. Contact the Hospital Rehabilitation dept. And also the the Therapuetic Recreation Dept. : Ask for resources

The thing the has worked for me is do things in person . Yes you get worn out and yes you may need to figure things out : transportation, getting in and out of the bathroom etc...

Getting better is a full time job lol