HI Zebgirl, Welcome
usually, people who are diagnosed( With Prediabetes, as you indicate) will try and get some idea of where your levels are at different times of the day, So it is a good idea to test:-
when you wake up in the morning
Before a meal, and 2 hours after the meal, you could test at 1 hour after as well.( But strips may be an issue) This will help you identify what foods push up your blood levels.
Keep a note of what you eat and what effect it had on you.
You will probably find that Carbohydrates like potato, pasta, white rice, bread etc, will push up your sugar levels and you need to cut down on the amount you eat, or stop eating that food.
If you need to lose weight, or want to control your Blood Glucose consider going Low Carb, it appears to work for most of us.
Look at the Forums on Low Carb, Diet, LCHF, and you will get an idea,
Look at this site, as it gives quite a lot of info
http://www.bloodsugar101.com/
Go to home and look around.
Im certain that others will advise you as well, but feel free to ask any question's and someone will help,
Good luck
