What stopped you when the price was low? don't let the sudden increase make you rush into the market- learn to control your emotions.
The ability to control one's emotions and greed before joining the crypto market is something that every crypto investor should master. If an investor learned how to do that, he would be careful to know when to enter the market and when to take profits rather than being quickly swept away by the green side of the crypto market.
One of the challenges of some traders is that they don't know when is the right time to enter the market. Some traders feels when the market is red it is always a wrong time to get into the market to trade. If the green should only be considered as the best time to enter the market, I think it won't always be a right decision. Going into the market when it is green is just greedy sentiment for trading.
The main reasons why many investors enter the market when it is green are anxiety and FOMO. They assumed that because the cryptosphere is currently profitable, it will remain so. It would have been a catastrophic error for them to delay entering the market at that time. They are unaware that the green light has negative price implications. It might quickly become red which would result in them losing money on their crypto investment if care is not taken.