Cryptocurrency market are very risky, after a green market will be a red market. But because cryptocurrency market raise a lot of newbies came to the industry and if they do not want to risk there are investments funds like https://defiscale.io/ that invest money in gambling and finance and offer a stable income from investments.
I totally agree, it needs a lot of knowledge joining it since cryptocurrency market is very risky especially to all newbies who don't know what to do when you enter in this kind of investment. It needs a proper knowledge to do something better in cryptocurrency world. Invest when market price is high but wait if it experiences downfalls. Trading needs a lot of knowledge before you gain some profit but it's up to you which coins you choose and give your very best to gain profit because there's a lot of promising coins that will surely help you gain money in this cryptocurrency world.