You aren't responsible for your BP (schizophrenia being the other option, if there is any), you probably aren't very much responsible for your depression, but you are certainly responsible to make the best (use) of it!

I am not talking about housework or socialising with family or friends: it can wait. I am talking about not getting under-stimulated (causative factor in (mild) agoraphobia or other anxiety problems, psychoticism and worse psychotic problems), so do go to places where there are people and go and explore the beauty of nature, just observe.

Try to steer clear of excitation/aggravation. Talking to anyone might be too much, at first.

Leaving your bed or house might also be too much at first, but it may also mean you are too late: you should have stayed outside as much as possible.

Take your time: you can't rush depression. It will backfire. Try to make your depression milder and more peaceful first, then and only then start doing stuff.

Take a week's leave of absence from work (if you still have it; or more), but don't push yourself to keep working as much as possible: take a relatively long period off work right when depression hits, so you don't stumble along with dispersed sick days in which you have no time to work on you depression.

Don't ever just stumble along. Recovery is a (very) gradual thing, which needs firm foundations and careful attention and planning. Foundations to restructure your life on. Foundations to stand on and look over the clouds that gathered low.

Depression benefits you immensely: not in the short but in the long run. We discover so much more about what it means to be human. No need to feel guilty about that: quite to the contrary. Just figure out how to use it in a better, more peaceful way: always. Steer clear of aggravation and excitement. Always steer a middle course.

You will eventually get better at it. Maybe even enjoying it in the moment, but certainly afterwards when you truly made progress. It may give you a feeling that you can't wait to be depressed again. To keep getting better at it. Seriously.

Good luck!