Continuing my INFP series...
I'm stealing this idea from my husband. It is the way he approaches work, and I've found it makes a dramatic difference in getting things done:
Ask yourself, "what is one thing I can do that won't take a long time, but will have a big result?"
Or, "What is one amazing thing I can do today?"
Find that one thing and do it. It might take you 15 mins, but your accomplishment is huge.
Remember, the goal isn't to find something big that takes forever and will burn you out. The goal is to find something that will have a big payoff, but be simple to do.