There are no secret strategies.
I'll share mine:
Buy stocks that are trending upwards.
Sell when the trend changes.
Don't hold losers in your portfolio.
Yes but you look at IWM how much of your gains would have been losses when price recently went from 202 to 193? If you bought 100 shares at the break of 200, on Friday you would have been up $200, but on Monday would have been down $-700 and no doubt stopped out before price made a full recovery the next day. This will happen repeatedly.