Hi there
You are NOT "useless" --anyone who isn't lying flat on a bed unable to do anything fir themselves has at least one thing they can share with another --which will help self talk.
I am in same boat--moved to a rental 135 km from city i lived in to use public transport so i can talk to strangers instead of no one --how desperate is that ??
Anyone that sits next to me is going to be talked to as i have no family that aren't "busy"

please please go to a community house ( thats what we call them in australia )
You are saying what at least 50% of over 60's say--ppl don't seem to live as long or are falling apart 5 minutes after we hit 70--nor value their friendships. It is sooo annoying isn't it ??
xxxx feel free to reply & sook i do it A LOT xxx