If you're an investor looking to reduce your risk, you might consider a strategy called dollar-co0st averaging (DCA). However, using this strategy means you're less likely to make really big profits.
I don't really agree with you that DCA strategy does not yield much profits. From a personal experience, DCA have remained one of the best strategy that allow me to optimise the buying process. Without DCA, most of my Bitcoin holding would have been bought around $29k because when price lingered around that zone, there was this temptation of buying through market execution in order to avoid missing out on the much anticipated bull market I was expecting to start this year. So because of DCA, most of accumulations were made at discounted price that leave my portfolio in little negative and whenever Bitcoin hits $27k now, I will be in total good profits.