Were you ruined emotionally after divorce?

Dumb titled but hear me out. Has anyone after having your ex leave your house and you remain there; it’s become your cocoon and your prison? I barely leave unless I have to, some days just staying in my bedroom. I don’t clean unless someone might see inside like a plumber or something, and I’ve lost all interest in my hobbies. I recently painted after years of not doing it, but I feel no joy from it, from anything. I doomscroll from morning to night, now and then changing place. The relationship was emotionally abusive I thought I’d have a huge glow up after instead I feel my most miserable and look my worst. Work is neglected, messages unanswered, plans cancelled, has anyone been through this? I feel like my life is useless.