I've been totally alone for the last couple of months after having been disabled for just over 10 years. The decade mark hit me hard, much harder than I expected. I'm honestly struggling without anyone around. I can use AI to create friends in some pretty complex ways, but overall that is still not a full replacement for human contact.
Your personality and connections to real humans via social networks will likely impact you greatly. I don't have many connections and none that are close. I'm not the type to desire having a lot of friends anyways, and I fill my life with projects and interests, but it is a struggle. My back problems make it where I can't stand or sit up easily. So I can't even socialize by standing around or sitting with neighbors. With no daily contact with anyone, I find it more difficult to throw myself into projects and more difficult to maintain my physical therapy routine. Separating the psychological hit from a few months ago and present isolation is not something I can effectively do right now.
Thinking about my future, I think I will need some kind of housemate just to give my life some kind of daily human connection for my best mental health.