Hurry has lead many traders to failure because many of them never took their time to find out the really information concerning the market pump before selling their coins. I don't rush when other traders are rushing to supply in the market because it has reduced so many traders to zero level in the profit making.
It is good to watch the market price very well before releasing your coins to market which will really help you as a trader to achieve something good from your investment.
It is good to carefully analyze the market before selling your coins but the same applies to buying as well. A lot of people fall victim to FOMO created by some fake projects and invest just because they don't want to miss out on the opportunity but they should always remember that even if they miss out right now, there will be more chances like when the token gets listed on the exchange and should always do their research and then invest instead of just investing under the pressure and FOMO.
It is better to wait and buy a token at higher price as opposed to buying it when the hype is being created. I was skeptical about investing in polkadot and I bought it at a higher price than what I could have and DOT is an excellent project but I am satisfied because there is still lots of room for profit and I have been fooled many times in past by fake ICOs which made me buy the tokens hurriedly.