My strategy in investing is to buy coins that have good fundamentals. the coins i keep are bitcoin, eth, bnb, ada and vet. Then I bought the coin when the bitcoin market was down and even crashed. As in the past there was a crypto market crash.
project fundamental was be main reason why we should pick them as our portofolio, roadmap and most valuable product that builded by developers team could make investors interested or even hate any projects. utility and usecase be main thing to recoginzed before we start buying any coins. without usecase or utility , a token or coins only be a shit and useless in any ecosystem.