Diabetes help PLEASE?

Hi, I am a female under the age of 15. I am experiencing what I believe are Type 1 diabetes symptoms. I have extreme hunger, fatigue, irritability, and fainting from very low blood sugar. I have had several blood tests during my life and no one has mentioned high blood glucose or anything like that. One thing I do have though is very high blood pressure and a rapid heartbeat. To be honest, I have not told my parents yet because I am afraid of the treatments. I cry every time I get shots I'n the doctors, which Is almost every other year. I'm not sure if I'd be able to handle every day. I am also very sensitive to blood. I feel sick everytime I get a small cut. Any advice on diabetes symptoms, or getting over my fear of blood and needles? I also heard the diabetes patients suffer from high risk of heart attack, eye sight loss, miscarriages and birth defects, along with the fact that many do not live past 50. All of this is so much to handle, I feel like im going to explode. I need some help, guys!