I have a friend who invests in cryptocurrency like me, he is an investor hold Luna and he has also lost quite a bit because of Luna. But what's more sad is his 2 best friends. Those two are also hold a lot of Luna's and Luna's crash causes them to lose all their possessions and become insane. As he said, one person has gone through the crisis and one has not. Those two guys who invested in Luna were all from my friend's advice. He said it was he who indirectly harmed them, money can be earned, but his friend are gone.
This is a sad story that I have heard. Through this story I want everyone to know 1 golden rule in investing is: never give financial advice to anyone. By the time you give them financial advice, you may feel like you're one step ahead of them, but if that advice is wrong, you could be the one hurting them.
There is no single rule to wise investment, it includes a whole range of information and strategy that can take years to learn. Trying to condense that into one gimmicky soundbite is doing a discredit to the hard work that some people are willing to put into a lifetime worth of finance research. One thing that many people do not have when they are interested in investing is a patience for the amount of time it will take to pay off - we're talking years and even decades. It also requires consistently adding more to your initial sum, not just expecting to dump $1,000 dollars into something and it to be $100k in a couple years, the best investors keep adding more each time they have cash available.