When the market suddenly collapses, you will see a lot of bad news appearing in this market. I think one way or another, the market will go against people's minds, and you will have a hard time guessing what a good time to invest is.
Thsts why we need to analyze the market and have our own understanding about the movement so we can somehow predict the next price of the coins to know if its a good time to buy or not.
However, I believe that if you choose to invest long-term, you do not need to worry because in the next few years, the crypto market will be more interested and the coins you are holding will soon increase in price over time.
Thats right if you plan to hold for long period timing to buy when the market decline. Then forget for a while the market since you have set a target price on when you're planning to sell your coins.