There are ways to make money on crypto currency that you can't imaging. The simple strategy that I use to sell the round number and wait few days to buy it lower is the key one.
A recent example was Etherium at its 400$ round number, So I sold that there and waitint couple days to break down and buy it back at 50-70$ less than it was.
Analysing chart is another good indicator which tells you precisly when and where it is going to happen