Hi Yellowfrog:

My situation is different, but there are similarities. I haven't held a job for about a dozen years or so due to a combination of both physical & mental health problems. I'm married & my wife works full time. We only own one car & we live in the burbs. There are a few stores near us & a coffee shop. But otherwise there's no place I can get to without a car. So Monday- Friday, I'm pretty much stranded.
I'm also agorophobic. So going out anywhere, especially alone is uncomfortable. As a result, I spend almost all of my time on either PC or on YouTube. I have joked a few times that, if the internet ever went down, it would take my whole life with it (LOL!) There's some truth to this.
I have thought many times that I should try to find some volunteer work to do. I also don't make friends easily & in fact I don't have any. Doing some volunteer work might be a way of meeting some people & developing some friendships. At least it would get me out of the house. But there's nothing close enough for me to get to. Also I would miss PC & all of my YouTube friends!
Anyway, I just thought I'd share my story since it sounds like there are some similarities. My best wishes to you!