I remember listening to an old geezer named Bernstein who was on Consuela Mack’s investment show in 2009. She asked the veteran stock picker what he was buying in the midst of the maelstrom. “Bonds” he sez. “Bonds?”, she asks. Yup - he explained that he didn’t need to make any more money, but wanted to retain his money.
As most of us are aware (at some conscious or unconscious level), the market is “fixed” and we are but motes floating in a storm created by the interactions of high frequency CPU trading based on algorithms interpreting a wide variety of electronic tea leaves in a complex “pump and dump” game.
Over the years I’ve made (and occasionally lost) a reasonable amount of money trading stocks. I have come to realize the adage that “this time it’s different” is a hoax to tempt the greedy into overextending themselves (over time, it is never different). The value that a share represents is the proportional slice of the intrinsic value of the company plus a reasonable value of the positive growth in cash flow predicted by metrics that make sense.
Back when I was about 28 and knew “everything”, I was the target of an elderly salesman who was about 55 years old and who was, in my eyes, an over-the-hill relic from a bygone era. It took me about 25 years to realize how wrong I was 
Each generation needs to learn the same lesson. While it’s true that I occasionally sell shares which have either disappointed me or overshot my expectations my current attitude is to pick good (frequently boring) companies which, as a portfolio, will continue to provide a reasonable income stream proportional with the money invested (adjusted for inflation) as well as a moderate possibility for organic growth.
I go on the assumption that I am not going to get important information faster than the computers front-running me, nor am I smart enough to create unique models which they will studiously avoid (followers of gurus like Kathy Woods who convinces many that they have a secret sauce are simply the latest of a long history of rubes who follow the meme that “this time it’s different” - they aren’t the first and they won’t be the last).
Patience is the name of the game and true diversity of assets (both in type/currency/geography) while not maximizing gains at any given moment, provides the ability to build wealth over time.
The likelihood of a recession, with an accompanying stock market “crash” is significant enough that I am currently about 50% in cash (and short-term similar bonds). My equity portfolio has a substantial portion invested in terms of foreign currencies (details on a parallel post put up yesterday).
On a number of recent occasions, various specific shares (Cisco, Meta, FedEx, Citicorp, Tencent, Baba, Baidu all come to mind) have been (IMHO) unfairly whack which allowed me to pick up positions at a bargain. As the market drops I will be keeping my eye out for other opportunities.
At one point, blackjack games in casinos were played with a deck of cards. Nowadays, there are ten decks in a shoe.
For those who prefer gambling, you have a better chance in Vegas than trying to consistently beat the market-makers at their own game.
Jeff