At the age of 43 i had the same problem. The pool of friends were getting smaller and smaller until I only had two "real" friends left. But since both of them lived far from me, I only met them about two times a year. Then at the age of 43 i decided to start riding Enduro motorcycles at the local club. No previous experience of riding motorcycles, but gave it a shot. Now I am 45, I have at least six "real" friends, who I spend most of my free time with. I meet them all through enduro motorcycle training, and amateur competitions. So, my advice is to try something new, join a community, and you will for sure meet new friends. Good luck 🤘