Yep, each person may have a different strategy or method of investment. We don't think that a certain strategy can work for all people and works every time. OP can choose a strategy that fits with him, and he also used it at the right time. I am not sure it can work as well as OP did when it is used by another one. Also, considering the current situation on Bitcoin and crypto market, not really sure it can be good to apply nowadays. A certain investment strategy can work well if it is used at the right time, but this time seems not a proper time to use it. Especially if it is applied by another person, not OP.