Hello and welcome! If you don't have a glucose meter, then prob'ly the first thing you need is that little gizmo. If you have insurance, you may need a prescription for strips, but you can also get cheaper meters at Walmart/Kroger/Walgreen/etc., which have strips for a lot less even without a prescription. Get used to testing yourself throughout the day . . . first thing when you wake up (this one is called your fasting blood glucose or FBG), and start testing before & after you eat, also logging what, when & how much you eat. This will help you weed out the foods which cause the most trouble. Tests done after eating are referred to as postprandial readings, and they give us the best clues to how we're controlling our diabetes. Try to keep your readings under 140 (7.7)I have diabetes.
A great website for information is BloodSugar101 . . . tons of good advice there & easy to navigate.