Sorry about your nephew and I sure send my best to your sister and her husband. It is interesting how one person's perspective can be so much more positive even though their external sitch looks bleak....
Your children will someday face death in your family and so, seeing what you DO now and in the next few weeks, will model for THEM how to respond when it happens in their life. I grieved after my father's death and my children saw me do so, but they also saw me eventually move forward, laugh and love again. Our pain is NOT fatal and it is Not eternal and it Will pass and those are things you can teach your children, right now.
good luck, j
M: 57 H: 60 M: 35 yrs S30,D28,D19 H off to Alaska 2006 Recon 7/07- 8/08 *2016* X = "ALASKA 2.0" GROUND HOG DAY I File D 10/16 OW DIV 2/26/2018 X marries OW 5/2016