it is never easy losing a loved one but day by day, week by week it will get easier. You will be able to think of all the good times you shared and smile at the memories and best of all you will be glad you honored his wishes and nursed him at home.
I lost my mum too to cancer and my dad and I nursed her until the end at home and to this day my dad says it is the best thing he ever did and I agree too even though it was hard. Here in Australia we have the same as you with nurses coming day and night to assist and all equipment supplied.