Hi, I'm new to site but recognise many of the issues I've dealt with alone, we all deal with. For me timing is a major key point. Set a time to start your day, rest your glucose, take your insulin, and eat according to your diet. Keep a log of your results so you will see trends. Test before and 2 hours after you start meal.
Try not to feel that your control efforts are interupting your young life - work your routines for diabetes control into your life routines. It's just a part of who you (and the rest of us) are.
Do you count carbs? Have your diabetes educators taught you haw to figure out your Insulin sensitivity factor? Insulin-to-Carb ratio? an insulin Correction factor?
I found a HUGE help was the Complete Guide to Carb Counting, 2nd edition, by Warshaw and Kulkarni, available in bookstores throught the ADA. It isn't just about counting carbs. It will help you with the sensitivity factor, insulin-to-carb ratio, corrections, etc.
I had some really good discussions with my nurse-educator about the info in this book and it really helped me.
Remember, not every day will have "perfect" control, but you can get a good handle on acheiving better control.