Since you work for MedHelp there is something that I wanted to suggest which is that you change the name of this forum. "Juvenile Diabetes" is an extremely outdated designation for Type I diabetes and could be very confusing to the many people who are diagnosed as Type I in adulthood, including those who like myself were misdiagnosed as Type 2 due to age and are in fact LADA Type 1.5. Please consider renaming this forum simply Type 1 Diabetes.
As for "what to do". My suggestions would be to read, read, learn, learn. Type 1 diabetes is a complex disease and evryone's management differes. There is lots of good information out there and knowledge equals power to treat your disease.
My next point would be test, test, test. For most Type 1 (insulin dependent) diabetics 8 times per day is minimum (fasting, before and 2 hrs after each meal and bedtime). Also test to see how different foods affect your glucose and test whenever you have a concern about hypo or hyperglycemia.
My last point would be to recognize that you are going through a major change in your life and that things will never be the same. This is very stressful and a lot of emotions may come up for you: anger, sadness, confusion, fear. Whatever you feel is OK, but you may need to take extra special care of yourself when you are newly diagnosed including talking to your loved ones or even a professional, getting proper rest and nutrition and remembering to enjoy the things in life that you enjoyed before your diagnosis.
Thank you so much for your response. In response to your suggestion concerning the name of the forum, we are taking it into consideration.