I think crypto market is a little different, you have to keep an eye more on news and fundamentsls, also keep an eye on market cap, volume and trend and you can make good money.
You are right at some point, but the foundation on how to learn the market will always start on the supply and demand of every coin, you always need to look at the statistics of a coin you are interested before investing in order to determine if there is a chance to get a profit or none.