Be it a newbie, expert or professional bitcoin and crypto currency trader or crypto currency investor with adequate skills; you definitely need to understand how to adapt to market situations.
What does adaptability entails? Adaptability teaches you and lets you know when to switch from "sell at resistance" to "buying the breakouts of resistance" within split seconds. Know this and be at an advantage especially during price correction that occurs during bull run of prices.
It is an advantage if you have that character. In this market, you will never know when to sell and when to buy. But being an experienced person, you'll know when to decide. It is not about the best time to buy or sell but it is about how flexible you are in making decisions and how timely it is. Experts also make mistake in selling if they are relying on TAs and we know that sometimes it's not working due to bitcoin's volatility or any altcoin you hold.