Don't play with three things: contracts, copycats, and short-term trading.
If you play, only play with platform coins. The longer you hold them, the lower your cost will be. In fact, due to the large fluctuations and high-leverage contracts in the currency circle, everyone should play with a defensive mindset. Just hold the coin and remember your cost. For example, each platform coin can mine new coins. Every time you mine a new coin, your cost will be reduced a little. Time is on your side. There is no shortage of opportunities in the currency circle, but there is a lack of patience. Everyone's heart is too big. When they enter the currency circle, they all want to change their fate. However, there are obviously fewer big opportunities in the currency circle than before, but there is no shortage of small opportunities. Accumulate a lot and slowly get rich. As long as you don't leave the gambling table for a day, there will always be opportunities.
