You could also think about volunteering. I volunteer as a befriender for 2 people. One, we usually play scrabble and the other we just sit and talk. I do it as much for myself and I can claim expenses so even better. Also, have you thought of doing online courses. There are loads, I've done some, they are really good. Check out coursera. They are free and some have online forums so you can interact with others that are doing the course. Good luck, feel free to message me.