Sweetheart, listen carefully: I guarantee you there are people who care if you live or die. The people in your life aren't making you feel that way, but that doesn't mean they don't care.
Even more, I care, and I don't even know you. I promise you there are a bunch of other folk here that are your instant compatriots, as we DO understand... we live it too.
Diabetes can be very hard on a person. Right now, you need comfort and emotional support, and the Diabetes Online Community is a very good place to find some. We're a caring bunch, and make friends easily with other members of the tribe. Please hang around, get to know us, add to our community.
We need you too, just like you need us. We all have had bad times, and many of us have found refuge here at TuD.
It will get better. As your mood improves, the next thing is to take positive ownership of your condition and learn how to be completely independent. We can help with that too, so when a low happens you can deal with it without having to also be punched in the gut with a non-supportive person when you're somewhat desperate for help.