I’ve only just seen this as I’m not a frequent visitor to the site.
My wife was a teacher and her teaching assistant died after a battle with cancer. She was a similar age to your wife. Her husband, with three children, also wrote a blog. Although I have never met him, as with yours, it left me in tears after every update.
I’m more into the maths and engineering than the written emotion. Even so, at times I have written my emotions down. I went through a bad patch with work and took some professional therapy. One of the ways to deal with difficulty, so very often, is to write it down. It worked for me. It stopped the random thoughts bouncing around in my head and established some sense of order.
If, in writing down how you feel it helps you, its a big plus. I feel that if it helps you and helps somebody else deal with their difficulties its a massive plus and worth every word.
Your writing is inspirational as well as emotional. I cannot begin to imagine the difficulties that you have faced or are currently facing. Don’t be afraid to express yourself. Don’t be afraid to ask for help. Don’t give up. Your family need you and you need them. While elements of the past have been difficult, the future, I am sure, has much which is positive to offer you.