I said it in the comment above, if you are unable to go out / ask someone out / spend time with them, it is most likely not going to work out. I like spending my time with my cat too - but I am able of going out to meet someone in a park for instance. Maybe an online relationship with someone has a place, but at the end of the day - nothing can substitute being in the same place together.

You seem to have more pressing matters than a relationship to take care of. Finding a partner is secondary to taking care of yourself. A relationship won’t magically fix anything, worse yet, it can be detrimental to your health. A partner also isn’t there to baby you, or be your therapist. Can’t really give you mental health advice more than that, I am not a psychiatrist or a therapist. And even if I was, giving medical advice on the internet isn’t something people should be doing.

You probably need to rely on your support network, ask someone for help if possible, or call a doctor. It won’t be easy to overcome though.