In January and February there were a number of things (usually I had to work more than anticipated) that made me prioritize my goals and sacrifice progress in one in order to stay on-track for the other.
I only have so much time and I won't sacrifice sleep. In fact, I prioritize sleep when I am tired over other activities because I want to listen to my body and I know when I am tired I am less productive and what I do is of significantly less quality.
So when I realize that I can't quite do everything that my ambition set out for, it's time to re-calibrate.