A lot of my answer is based on my current age and what's going on around me.
At 77+ years old, my portfolio goals are aimed at low risk and capital preservation. I'm at 25% equities and the rest split between muni bonds, select and somewhat safe preferred stocks, and cash (all CDs matured). So if I saw a market drop of 50% it wouldn't mean a lot.....I'd just re-balance back to 25% and if interest rates go up, buy some CD's. We have enough to make it to the end, and then some.
A couple of months ago, one of my best friends had a severe stroke. He is wheelchair bound, probably for the rest of his life. My brother-in-law in California passed away this last Easter Sunday. We were really good friends for 25 years and played a lot of golf together. I already miss the weekend phone calls we routinely had.
I have had both hips replaced, had a bout with SVT (heart racing issue) and still seem to be pretty healthy overall (spent a ton on dental work last 3 years too!).
DW has advanced COPD and if she has two years left, her doctors will be surprised.
So it's not a big deal if my equity portfolio drops 50% as long as the "rest" is not affected.
I'm like Robbie right now, spend on what we want, which is really not much these days, and if something big pops up, we handle it somehow. In the end, my daughter will have a good inheritance as she is deserving of it.
We don't have a budget and I loosely track spending (no more Quicken use) with a small spreadsheet. No mortgage or loans at this age.