In my case "deal with it" doesn't mean "make me not depressed": I'm still depressed but it does help me turn some some of my bad, hard-to-do-anything days into ok or even occasionally productive ones. And having something useful come out of a day I thought I would be useless is also helpful in fighting depressive thought loops about being a useless/lazy/bad person generally speaking.
Sincerely,
a depressed person
The advice is to break the goal down into the smallest possible pieces and start there. For getting out of bed, I'd probably start with rolling onto my side.
It's not a cure. It's not guaranteed to work. It's a strategy for expending as little energy as possible to get started. If you can focus on one small, actionable item, it can help reduce how overwhelming the entire task feels.
If you don't have the capacity to do something, there is no advice that will make that thing possible and no one should be expecting you to do it.