I think this is probably one of the biggest challenges in electronic money. There are so many things you need to learn and consider before you start investing in it or you will lose any money you can not afford to lose. It requires you to have a solid psychology and a certain level of knowledge
Crypto can stay depends on how it is being develop and how successful it is. Know where to put your investment and what coin is good to keep. I am believe thay every of it cannot lose value in the market and continuously supported by many investors to grow and make more improvement of it.