There are two basic things that need to be implemented when the market suddenly falls like yesterday to make a profit. First, the attitude must remain calm by thinking that it will recover. Second, take the opportunity to buy as many coins as possible, such as top 10 coins.
When the market falls controlling the attitude is the most important thing. Emotion is a very big challenge for most traders , they give up when the market is not favourable to them. If attitude can be deal with 40% of trading challenge is solved.