You mention your Dad was in a choir. I would think that could be a lot of fun if you find a choir doing the type of music you enjoy.

I've seen on TV some of these mega churches have some fun upbeat music. You would be socializing around like minded musically inclined people, and be forced to get out to socialize at least twice a week for practice and church service.

Also check meetups for jamming sessions which when I was younger were held in cafes and such where I live. You could practice your singing if you find a fun relaxed group not looking for perfection. Just need your phone with you and you have the lyrics to many songs at your fingertips.
If you purchase a portable keyboard, you could even take that with you eventually.