Death is the closing act, so you gotta make it good!
Actually you don't.
If you authentically assume that you will cease to exist at death then planning what will happen after you are dead at your own funeral makes no sense to me at all.
If it actually gives you pleasure to do so NOW, enjoy yourself.
However the greatest element in the denial of death is doing the Mark Twain Tom Sawyer approach of fantasizing how it will be at your own funeral.
Me? I do not plan on being there!
I hate death.
I am opposed to death.
Death is my enemy.
Just my personal opinion.