You are right in the some aspects but not in all of them. Buying is the main way to start your doing on the cryptomarket and the next position is the holding here.
There's a lot of opportunities here in crypto but buying a coin is the main thing to do so it is necessarily to buy more and in order to hodl for the purposes to earn profits when it flunctuates.
For those quality coins holding is very important but not all of them are worth to hold, there's also project where pumped and dumped mostly happened, you need to buy project that you study well and analyze the potentials, things can be more profitable if you have done your research and supporting the
project by holding it will bring huge success.