Good day, mates.
My strategy is to buy coins when the price drops sharply.
Sometimes I fail, because the price drops more than I expected.
But, to prevent this worse situation, I put 30% of my budget at the time of initial investment.
If the price getting down again, I put 30% more.
With this strategy, I am getting some money so far.
In conclusion, I recommend you guys to buy coins when they drops rapidly.
After sharp drop, there should be sharp rising.

A very good strategy but it is not recommended that you should buy when price is at the stage of dumping as the coins may find it very difficult to recover after that and you may still even end the last 30% at loses.I always advice traders to trade using the technical analysis and candlestick chart patterns as this is more accurate than any other strategies.