Essentially the biggest challenge of crypto trading is a dual uncertainty: the market itself is in a “random walk” all the time, and it is because of the uncertainty posed by the market that the traders’ can’t make up their minds decisively (they don’t know exactly when to buy or sell).
As you make progress in the market and acquire knowledge and experience from observation and practice, the decision of when to buy and when to sell becomes easier. Because of the experience you have acquired and the knowledge you have, you will be able to see patterns easily and better than when you just started trading. There is still uncertainty, of course, but not to as much as when knowledge is still very much below average.