I am sorry you are where you are. I can relate, and know how it feels.
I am stuck in a funk right now too. I know things I can do to make myself feel better, exercise, cooking a good meal for myself, calling a friend, but just getting the energy to do those things seem impossible sometimes. Finding a hobby to do to take your mind off of things works sometimes too.
What has worked in the past is setting up a schedule, and then putting alarms in my phone. For example, 8am - daily goals journal, 10am - meditate for 10 minutes, etc etc...it is a good reminder to sometimes snap me out of it, but lately that is not even working.
Maybe set up structure in your day, so you can't just wander aimlessly around the house.