You can't save someone if you're drowning yourself. I wasn't really thinking of partners here. I guess I was blessed in that my partners at the worst moments didn't really care that much about me. Getting a partner that has my back was part of getting better. Or put another way, even on the worst days I just couldn't do it now, because I know she'd be destroyed.

Anyway, I think friends and even just acquaintances can do more, even if that seems counterintuitive.