I've been thinking back looking for the biggest things that helped me during that wonderful time just after you've been diagnosed with Diabetes. This is for the folks that just have been diagnosed to help you find your way.
1.) Wash your hands before you test. Since I stopped using alcohol wipes to clean the test site, the number of false highs has decreased by 95%.
2.) Start a Dietary Journal. Test before you eat, write down what you ate, test again two hours later. The more data you have, the better. You will find out what you should stay away from and what you need eat. The idea is to eat things that cause a "net negative" (my word, not copyrighted) in your BG readings. A 'net negative" means your BG is LOWER after you eat than before.
3.) Have a routine for eating and testing. Take your fasting reading at the same time every morning and eat your meals as close to the same time as possible.
4.) Be "bad" once a week as a reward for being good. After working hard all week on your diet and exercise routine, you deserve a treat. This also helps to control binge eating.
5.) Never beat yourself up, stay calm. Bad BG days happen. Some times it was what you ate or the walk you didn't take. Other times, stuff happens. Stress can push your BG up 100 points. Your BG will also go up when you are sick. Relax.
6.) Keep it real, don't lie to yourself. If you cheat, admit it. Don't try to justify poor choices. Do not zero out high readings on your meter so it doesn't effect your 7, 14, and 30 day averages. Its not a contest.