My friend was in a similar situation, and what he did was just went on Meetup and Facebook and searched for groups for things that he was into. Two of those groups were white collar boxing and open mic nights. I had no idea he was lonely before. He was my friend. If you filled one day of your week with a social group in the evening and then another day of the week with another social group. And eventually you feel like you're doing enough things. And you'll end up being your friend. I only meet mine once a month outside of those, but it's still really nice. Also, if you do join any social groups, you'll find yourself going to the pub afterwards.