True, for three months in 2023 I averaged a Big-Mac a day using $1K per trade.
Let me share with you what I do:
The basic premise is at entry, there are only two probabilities, it either goes up or goes down. If I randomly enter, the probability of being correct is 50/50. I ran tons of backtesting to prove it.
I stared at real time charts enough to know there are situations with > 50% statistical probability it will keep going up for a short period. I find those situation and get in.
The second trick is to get out before it reverses.
If my guess is wrong, I get out quickly, no lingering or hope for a reversal.
It is an extremely simple scheme, no indicators, no support/resistance, no BO, no let winners run....
But I cannot write an equation for the scheme and cannot prove it is correct.
It is also very time consuming, like a day job. I am really too old for that.