Poor Me,
You have my sympathy it's not an easy condition to come to terms with. I trust you are getting enough support from the hospital you are attending.
I've a son who was diagnosed 3 1/2 years ago, he's five now. So I can only say your ability to deal with and manage the condition will improve. I know both myself and my wife found it beneficial to speak with someone that had gone through the same thing.
It's nice to realise your fears are the same fears that many people live with (thankfully they remain fears)
I found your post because my son has recently started primary school and i am dumbfounded the there is no government policy to help schools support the needs of Diabetics. There doesn't even appear to be any support or guidance to help schools form a policy (i could be wrong on this second point, I just haven't found any)