Hi Charlotte
I think the fact you've come onto the forum to voice your concerns is a very big step in the right direction you're accepting things cannot continue the way they are/have gone on.
My son has Diabetes type 1 diagnosed two years ago some days he gets very down (He's now 12) on top of that he's also been diagnosed with Coeliac Disease so stuck with a gluten free diet for life too.
I do know that when his reads are under control he feels so much better in himself not just physically but, mentally too.
If I could change anything I would happiely swop places with him and have the Diabetes and Coeliac but, I can't. I did go through the emotional mill with it all and was told that was only natural sounds daft but, was told I was grieving the loss of a part of my son.
You have to accept you do have Diabetes and that's not easy and, then ensure you do everything you can to help you lead as normal a life as you can now. This forum is a good way of letting you know you're not alone and, offers the much needed support.
You have your lovely children to care for and, that can at times be a real challenge and you'd feel so much better in yourself once the reads are under control.
The most important person in your house is 'you' and you need to look after yourself so you can in turn look after the rest of the family. The sooner you get a routine going the happier and more in control you'll feel.
Good luck and let us all know how things are going!