My heart goes out to you at this difficult time. Hugs
I lost my brother last year who was on hospice at the age of 50. I can say this to help ease you just a little bit. While my brother was on hospice, there is counseling from hospice to help you thru the grieving process (because it starts at diagnosis) It does not matter where you live, they will continue to help any relative that needs it for one year
after the loss of your loved one. It's never easy to know your leaving your loved one but on the same token, you know the suffering is over and this will make it somewhat easier to handle when that time comes. I am still grieving right now and taking things one day at a time. Hopefully you will be able to do the same.
My deepest sympathy for you right now,