1.Only invest what you can afford to lose.
2.Never invest in something you dont understand.
You wont immediately understand everything, thats ok. Do some research.
3.Dont day trade unless you spend a minimum of 6 hours a day on the markets.
4. Be patient and buy it on sale.
I think that the problem of people is that they do not share investment and trading. It seems to them that they are one and the same. Therefore very many remain behind. It seems to me that if you are set for long-term hodl, then you do not need to look at the price every day. It can play a cruel joke.