Put your funds in many baskets. In case the one gets hacked then some are safe. Same with trading. Dont go putting all your funds in a trading website, just deposit the number that you are willing to risk.
I guess that is the first rule when you are trading.
Next is control your greed. Be satisfied with a little profit then wait for the dip again.
You could also put an order just in case it dips you dont need to wake up with its alarm.