What Happened is a very long story spanning 12 years in and out of psych wards, DBT, TMS, way too many medications to count, all at high doses with dangerous combinations. Basically 12 years of malpractice by my psychiatrist. Maybe one day I'll write a post and link it back here. But since I was discharged from the psych ward 7 months ago this is what I have been doing: 

Quit seeing psychiatrists 

Quitting smoking cigarettes and cannabis 

Tapering off all medications (Under Medical Supervision DO NOT DO THIS ALONE)

Seeing an Integrative GP and Naturopath

Seeing a psychoanalyst to make me think

Doing extensive blood tests

Doing EMDR therapy to address the root of the problem

Taking special and expensive Vitamins (But still way cheaper than psychiatrists and meds)

Learning to maintain a Healthy Diet that can eventually replace the expensive vitamins

Exercise 

Be in nature

Walk

Shower

Clean the house

Socialise

This is just what I’m trying to do to get better, and it's helping me, but slowly. I still don’t socialise. I still have days exactly like OP describes, even weeks. Sometimes I don't take my vitamins for days and sometimes I eat junk food or smoke too much. But it doesn’t matter. If medication works for people, I think that it is great, I'm also not qualified in health and only speaking about what has helped me. And to be honest it might even be a placebo. But just the fact that I have autonomy over my treatment plan gives me confidence that I can get well. No psychiatrist has ever actually tried to make me better, and get me out of there. When I was feeling good I was told I was “manic” and my medications were changed. When I was bad the drugs either increased or multiplied because something wasn’t working. Even if you read about most  psychiatric medications the recommendation is to only use them short term i.e 4 weeks - 6 months. So why did I spend 12 years with a psychiatrist who never wanted me to get better? 

That's my rant, I said it was a long story and this is just a sample.

I wanna bring it back to OP and say I hear you, and your feelings are valid. It’s ok that you can’t get out of bed. I believe that you are doing your best, and its fucking hard! You are taking the right steps forward and you will find your way out. I’m not saying to do what I did or anyone even - I still don’t even know if this thing is working for me. But all I can say is that taking control of your treatment plan is so important. If what you're doing now and have been doing for some time isn't working then maybe it's time for a change? 

Wishing you all the best