I tried different medications for depression and none of them worked. I still felt depressed but with bonus weird side effects.

I've had a sort-of similar experience to yours, with opposite results: I've lived alone for years, and recently acquired a roommate (well, person who lives in the bedroom at the other end of the house), and it helps a bit. At least more help than harm, anyway. Just having someone else there some of the time has pushed me into slightly better routines for things like keeping the shared parts of the house clean, which in turn leads to a better mental state.

But there's definitely a difference between adding one responsible adult to a household versus adding people with multiple children to a household.

(I still haven't written fanfic in a few years, which is frustrating. But honestly, it's not just depression. It's also that no show has grabbed me in a fannish way enough to make me feel compelled to write of late. Star Wars movie fandom isn't one I want to delve into--it's big enough to be a nightmare, plus I really need the constant input of a show to feel secure in my characterization and to have the interest in filling in the gaps from a show. Movies just don't work that way for me and my own fannish inspiration.)