Instead of having a new years resolution I employed a daily checklist to try to help my depression. It includes a few items like:

“Movement” to encourage myself to at least walk around. 
“Nourishment” to have one meal that is nourishing and/or filling. 
“Self love” to check off even if I do something like sleep for 14 hours - rather than feeling ashamed. Or even basic forms of hygiene, anything to take care of myself. 
“Learning/reading” to encourage me to keep up with 1 thing a day going on in the world, or reading as a form of escapism (rather than electronic escapism). 

This has been helpful so far. I even put it on my phone screensaver. As someone with chronic depression, I felt like these extremely high level goals have been helpful and it gives me a sense of accomplishment because no matter how small the task is, I can usually fit it into one of those categories. Maybe i’ll get sick of it…but I thought i’d recommend to anyone in that limbo phase of doing bad and doing well.