I'm afraid I don't have any useful answers to this for you. But I noticed you had yet to receive a reply to this post. So I thought I would write one & perhaps other PC members who do have similar concerns will yet reply.

My own personal perspective is one has to go out & get involved in things one is interested in &, in the process, one will inevitably meet new people. Over time at least a few of them may become friends. However, since I'm an old recluse, what occurs to me with regard to your concern is probably wrong.

Here are links to 7 articles, from Psych Central's archives, on the subject of how to make, & keep, friends:

10 Ways to Make Friends

10 More Ways to Make Friends

Building and Keeping a Circle of Friends

Growing Healthy Friendships

The Care and Maintenance of Friendship

https://psychcentral.com/blog/how-to...-more-clearly/

https://psychcentral.com/blog/8-tips...dium=popular17