Seriously, the older I get the more I look forward to Resting in Peace. No more taxes, no more mortgage or rent, no more bills, etc. I'm not trying to hurry the process, but I'm not going to be sad when my time is up.
But, I'd argue that should be a call for you to be even more intentional about adding more joy, beauty, and real, meaningful pleasure into your life. Those are the things we most easily give up, and if we're not careful we're bound to have little of it around.
But seriously, life should be fun. If it's not I'd encourage you to think about how you can make a change, even if it's just your mindset.
If I have had a nice length of life (lets say something like 70 years), and am no longer happy, healthy or capable of taking care of myself, don't save me next time I need saving (in order to live longer).
Most commonly this means that CPR can't be performed.
Depends on the manner of your exit. You may not be blessed with a merciful swift stroke in your sleep. Some ways of dying (like ALS) are absolutely horrible and I am sure that in the concoction of emotions that the victim feels, sadness is a significant component. Regardless of what they imagined when they were 40 and death was still a distant event.
Plus, aging will reduce the quality of life you have.
Yet we have this disease, it's called aging, and it just takes awhile to kill people. For some reason it is considered by many to be normal and good.