I am with Leticia. It is horrible, but it has happened and you have to get on with it. Some cope better than others; you just do your own thing and do your best, which very often is not good enough. This will be my 4th Christmas without DH and, TBQH, I am finding it the worst one yet as I will not be at home so haven't bothered with the usual preparations and feel like a fish out of water, floundering without purpose..... However, life is too short to worry about the 'what ifs' and 'what happenses' until you need to - apart from making yourself aware of all the usual stuff like paperwork and how things work. Make the most of the time you have, live in the now, not the future - you will soon enough be living in the past, full of regret and sadness..... Sorry if that is hard and upsetting, but it's fact!
to all my fellow widow/ers especially at this difficult time