Do not invest in coin you do not understand, or even see many people make a lot of money from it.
Calculate your investment in electronic money when your investment is not high, which will help you easily cut losses and exit the wrong trading.
Be consistent with your principles.
Be patient and think hard.
there are many more factors to consider, sometimes it's impossible to predict what happens and it's all down to one's luck. INvesting is very complex process, one needs to learn from experience.