Hunger scale?

Hi, can you clarify how the hunger scale is supposed to work with pre-planning our eating? I am definitely not fat adapted yet, just started giving up flour/sugar this week.

However, I’m noticing there are times when I’m about a -3 on the hunger scale and an urge is just an urge, and other times when I’m closing in on -8 or -9 on the hunger scale (like this morning when I tried to skip breakfast), and I wasn’t clear on whether I should be trying to push past serious hunger for the sake of sticking to my plan or if I should use my judgment and eat if truly hungry. I think in one of the videos she suggests eating if you get past a -4 on the hunger scale, but maybe I’m mis-remembering?