I think better strategy would be Buy the DIP, sell at local high, open short, HODL and sell at local low. Rinse and repeat. Indefinitely. Yes, it is easier said than done. But for me, it is easier after around 6 months of watch, learn, and execute.
That is not a good strategy, and mind you we are not talking about selling but how can a new investor buy bitcoin and the strategy which he can use to make sure that he keeps on buying and at the same time keep on hodli for a long period of time. Investing in bitcoin is for the future and not to sell in a year or two, because it is the same thing as trading. The best way is to assign an amount based on your own discretionary income after setting aside your emergency funds, reserve funds and float. You use that amount to buy bitcoin regularly either weekly or monthly, and make sure not to skip any week or month so that you can gradually grow your bitcoin investment portfolio. Let's say you do this consistently for 4 years and above.
Buying and selling to buy back not ideal, because you might end up running at loss after selling, you might not be able to buy back if bitcoin price keeps pumping, which make it not a wise idea. Slow and steady win the race. No need to watch the market before buying, as that is not important when buying using DCA strategy.
Knowing very well that BTC is just abit glorious than football bettings...
Why will you compare bitcoin to fucking football betting. It means that you don't have any idea of bitcoin. Bitcoin should be compared with other assets like gold, and real estate. Which have being in existence for a long period of time and business tycoons have understood that they appreciate overtime. Bitcoin is even better than those two that I mentioned because of her high volatile nature, and high demand for it.