Beware the coins that have a fake rise.
They'll make you lots of money, but if you're not careful enough, you might lose them all + your original investment.
Try to be as logical as possible. When the whole market is down and a coin is rising rapidly for no specific reason, then that's a fake rise. Make your money, take it, and stop.
Taking a Short position is also logical in this scenario.
Always remember, trading is a psychological game.
This is not financial advice.