I feel like if it's too overwhelming, it won't get done.
Make it a smaller issue: for example just say to yourself, I will hang up 4 articles of clothing and put away 1/2 box of something, then you'll feel a bit of an accomplishment and before you know it, everything will be hanging or put away. Keep at it and when the overwhelming feeling comes, just walk away until tomorrow, but do
Like: instead of the clothes, let me clean under the sink (something small, arrange books or mags.) this way no matter what you've accomplished something!
*But the next day go back to hang 4 items up thing...so you really do accomplish this in the end.