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.
It's important to be used as a record. many people who invest just following other people without knowing what they are invested. the most severe when it suffered a loss then will blame the circumstances. patience is also a thing that should be remembered. the panic that always occurs difficult to inevitable and certainly needs patience in investing.