Hello and welcome, I have been through the same thing with my granddaughter, she was diagnosed at 2 1/2 years and I was so upset and devastated. It is such a shock and parents and family can feel very scared and anxious at the prospect of a child with Type 1. But honestly kids are tough little cookies and they seem to just get on with it and cope well. My granddaughter is 6 now and a happy and healthy child, who does everything her friends do.
It will get a little easier in time and anything you would like to ask or just let off some steam, there are plenty of parents and other members here to help and support you. Your boy sounds a lovely little chap, you must be so proud of him.
All the best and take care
RRB x