Hi Clare
Welcome to the group. I cannot add much technical help, others have got there first, and they are better at it than me. This is what I like about here, loads of good advise, and support when needed.
I am a late onset Type 1, diagnosed at 57. I had been developing symptoms over about 4 months. At first my surgery assumed I was type 2, and gave me Metformin. This had no effect in the D. So they gave me Gliclazide as well, and then I really felt ill.
Eventually they realized. I was sent to the diabetics dept of my hospital, who showed me the way of insulin. When they found out I spend time on my own walking in Snowdonia, they were in a minor flap, and I was given a crash course in carb counting and other things there and then, (I had others later). Two weeks later I was back in the hills.
There is life after diagnosis. Its not all plain sailing, and you do have to learn lots. However it does not stop me doing much of what I want to. For me, the worst problems are time constraints.
I think it is important that you attend your husbands consultations. As well as medics, his care team consists of himself and you.
Hope this helps, Mike