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.
Firstly know what you are buying.
Secondly don't invest all your money into one token/crypto/ICO project.
Don't panic for small waves (10-15%).
Invest for the long period (5-10 years).
My last investment: EOS, Tron, Welltrado, Ripple.