Let's see,
bought MSFT in 89 for $0.4 sold in 90 $ $0.8 (after splits equivalent), now $200;
bought BRK in 88 for $2,000, sold for $4,000, now $280,000;
bought AAPL in 2001 for $1.00 stopped out at $1.00 (after splits equivalent);
bought AAPL in 2016 for $540 (prior to 7:1 split) stopped out @ $500;
bought FB in 2014 for $24, stopped out @ $20;
And then there were GOOG, TSLA, AMZN, all stopped out at a loss....
So now I stop using stops and doing much better but I still have problems: GE, WFM... no stops were a disaster on those. Amateurs can't win.