I did that in the beginning. Then I lost a lot of money and the same one is selling at 20 times the price I sold.
HODL is the best strategy during market crash
But do study the trend, I suggest. Since those trends could give you an insight if it's better for you to hold or to sell. If you are too risky, you may and up losing even your remaining investments. Well we don't what happen, but being aware of what could happen can prevent further loses.