Thanks for all the feedback, everyone. Great advice. I’m going to set up a separate screen on my GPS without power (I don’t use HR) and just focus on my position. I have low expectations and am now convinced that paying attention to power will only hamper my first crit. Power13 is right! I’m actually that guy who might get freaked out by a weird number 
I also found this thread that I’m reading. It’s been very helpful.