@Sunnyphoenix so sorry you find yourself needing to join our thread. It’s definitely the place to come and have a little shout if needed.
I’m 18 months in, but it seems like yesterday. Make sure you speak to HMRC if you live in the UK and claim the bereavement allowance..
I found going through the household filing cabinet gave me most of the things I needed to sort out. I purchased a pack of those plastic punched pockets and put each separate organisation in one and then put them all in one great big ring binder.
I then added an A5 sheet of paper with notes, et cetera, as I worked my way through.
I started a second folder for probate with the copies of the closing bank accounts, et cetera, his death certificate, his birth certificate, etc and this made everything a lot easier as I had it all in basically two places.