I’m very sorry to read this. Sending you (((hugs))) and cyber support.
We are here for you.
Maggie, there is a forum for widows called Way Up. I found it very friendly and helpful. Also found a book called Starting Again by Sarah Litvinoff very helpful. Often on eBay. Published by Relate, written initially for people divorcing, but it’s also very good at looking forward to the future, what you want it to include. Best of all it was possible to dip in and out of it and read just a page or two when overwhelmed, suffering from brain fog and struggling to concentrate.