Some rules for trading crypto currencies:
1. Never catch a train that took off.
2. Never trade on emotions.
3. Always use your stoploss and adjust it once you're in profit zone.
4. Do your own research. It's okay to use signals but double check them!
5. Buy the rumors and sell the news!
6. Don't buy at an all time high.
7. Don't do pump and dumps.
8. Never sell in loss (depends on stop loss of course)
9. You try to get more bitcoin in the long term.
10. Sometimes the market plays against you, skip the day.
These are good rules, adhering to which you can become a successful trader on the crypto market, but you should always remember that cryptocurrencies is a very high-risk investments and the chances of losing everything are very high.