Meters are an important part of a diabetic’s life. If your bloodsugar is high, don’t eat. The only way to do this, at least at first, is to wait until your bloodsugars gets down to a reasonable level before eating and the only way to know this is to use one of those testing gadgets. The price has come way down these last few years.
And, in any event, at least at first you should take your fasting blood sugar level first thing after getting up in the morning. As you lose weight, you should find that your blood sugar level goes down.
Yours truly’s fasting level was high before Atkins, reasonable when on Atkins, and great (less than 100) after going on a strict fried rice diet for a few weeks. Whether the same would hold true for you, of course, is unknown.