During this recent stock market "turbulence / decline"... I haven't felt worried or upset. This is because of the allocation of investments that I have.
My whole life until a few years ago, my allocation was about 99% equities and 1% cash. It was only about 3 years ago that I started to prioritize non-equity holdings to gain a better balance with my investments.
Through personal savings and an inheritance, I transitioned myself from a 99% equity; 1% cash allocation.... to an 80% equity / 20% fixed income allocation.
In addition to holding index funds (and a few solo stocks for fun)... I have some funds in HYSA, MM, I-Bonds, T-Bills, and an Intermediate Bond Fund. Maybe that is a bit over complicated for that portion of the allocation, but the idea is... the portfolio balance is there.
Because I have this allocation, the lagging stock market makes minimal impact on my ability to quit my job today if I wanted to. I have the funds I would need for several years to ride out a bad stock market.
While I assume that my total expected return in the next 20-30 years may be lower with this allocation, I am currently living the benefits. The benefits are real. I have a brother who is still almost entirely in the equity markets, and he is freaking out. I don't have any of those worries. Zero.
If I had to list the value of the Bogglehead Forum into one thing only, it would probably be this:
The forum has opened my eyes to the rational of having a balanced allocation of investments outside of just equities.
Kudos to the BH forum.

--- Brian