Struggling to move forward

I'm trying to move forward from losing my best friend roughly 6 months ago. She decided she didn't want to be friends with me anymore because i decided to work on my marriage, move out of the sharehouse we all lived in and decided to chase the dream of starting a family.

I'm 32 and I need to make new friends but I have no idea where to start! My colleagues are all younger than me and don't really understand what I'm going through, and I'm really missing having a person to share memes with, have deep girl talk with and someone to hype me up 🥺

How do we navigate life now?