One of the keys to success in trading is to be patient. remember that patience is key. You also need to be able to manage your emotions properly when you watch the market go up and down. This is very important so that you don't rush into making any decisions in trading.
For Bitcoin market it is true that patience is the key to success because the market goes down and you need nothing but patience. But if you are talking about altcoins market then really patience can be your enemy as well because you might hold some shit coins longer than required and suffer loss, I have seen times when I had good opportunity to sell the coins but I waited for more profit and lost a lot of money.
I would say for different kind of trading you can use different keywords for success and for altcoins trading the key to success definitely is the sharp nature to sell and buy them at the best possible price.