Last night was a successful attempt to match how much I ate of what things, my general wellbeing, and my insulin. I had a big dinner that I counteracted with insulin, but then I watched to see how quickly my levels climbed back up after the three (3) hour window of effectiveness ended. Then, based on the rate my level rose, I gauged how much additional bolus insulin and how much basal insulin I should inject. Happily I hit it right. My levels stayed constant overnight, and within target range.