Folks diagnosed with T1 as kids, help me understand.

My 5 year old was diagnosed just over a month ago and we have a great team at the local Children's hospital.

I'd love to know from those who have been through it, what where the best and worst things your parents did in regards to learning about the dx, how to manage it and how to accept it?

Additionally does anyone know if there are any active subs for parents of kids with T1?