Yes, I got out of my lowest point last year!
At the time, if anyone suggested I do exercise, do some life admin or clean the house to feel better, I'd just roll my eyes. It definitely makes you feel better doing that stuff, but lots of people don't understand they are impossible tasks to do when seriously depressed.
Tbh the only thing that helped me was completely letting go of my existing life and responsibilities. I moved house, moved closer to where I'm originally from, let go of a couple of difficult contracts (I'm self-employed), ghosted anyone that was creating any minute bit of stress in my life for about 6 months, and focused on getting enjoyment from little things. Buying overpriced treats, not worrying about a bit of credit card debt. I even let myself get kinda fat eating delicious junk and just stopped worrying about it. At my lowest I was pretty set on killing myself, so I saw letting all standards slip completely and getting at least some enjoyment out of my one life first, and that mindset got me where I am today (back to normal, with a gym membership as well...) 
Honestly, it helps SO much to just focus on yourself, give yourself unlimited patience and kindness and bloody TREAT yourself. A bit of debt is a lot less of a worry than the other thing!
After about 6 months you might be on the other side, gradually doing bits of cleaning/exercise/etc here and there.
I'd also recommend the book The Tao of Pooh. Someone bought it for me, it's all about allowing yourself to go with the flow.
Look after yourself OP. Like on a plane, you have to secure your own oxygen mask first xxx