I've really enjoyed reading this thread, as my "job" has fortunately paid me more than I would ever earn as an investor unless I went John Wick.
I only invest for my Super Fund, not for income.
I'm now retired and it is easy from my reading, all the way back to the paperback Daryl Guppy days as to what one needs.
One mainly needs a cushion for unforeseen adverse events, a calm attitude towards good fortune with fortitude to bad luck.
In our weekly Texas Holdem group this is between $14-$15,000.
Drawdown is important. It applies to shares, options, futures etc. Some silly guy with a nappy on his head turns the world upside down and your carefully planned buy goes to crap.
Rule number 1.................DRAWDOWN
The next one needs is self-belief, certitude, balls, ovaries, whatever you call it. Not out loud bravado, but an inner strength to enjoy the profits quietly and endure the losses with reflection.
Rule number 2.................EXAMINE ALL YOUR WINNING AND LOSING TRADES. DON'T HIDE. DON'T BOAST.
Rule number 3.................NEVER FALL IN LOVE WITH A SHARE. A share promises much. Like Jeffrey Epstein, Prince Andrew and Maxwell's daughter were promised by abusing in their deluded sick way the under-aged vulnerable. It all turns to dust in a smelly cell when it goes A up. Don't fall in love with a stock. If one feels even the slightest attachment, SELL.
Rule number 4.................THE LAST RULE. BE HAPPY. Shares ain't it all, nor options, futures, etc. etc.
gg