First, do not hold too many types of cryptocurrencies, try not to exceed six types. Aim to hold three to four super mainstream coins that are unlikely to die out in the next few years. If it’s really hard to choose or you don’t know how to choose, just hold Bitcoin.
Second, cryptocurrency holding should be moderately diversified. Do not hold just one type; you can choose three to six types to avoid black swan events.
Third, reference the types of coins held by those big players, as they have some value as a reference. Many of these big players have been in the game since 2012 to 2013 and have experience.
Fourth, choose a systematic investment approach for holding cryptocurrencies. Start systematic investments during Bitcoin's long-term low-volume consolidation or the initial phase of an arc bottom, and try to avoid downtrends.
Fifth, maintain a pessimistic expectation when holding cryptocurrencies. Holding coins during the bear market or the beginning of a bull market is about buying the dips, so think long-term for a bountiful harvest two years later. Therefore, try to use spare money that does not affect your life. Even for Bitcoin, a drop of 40% to 80% can occur. However, as long as you are holding Bitcoin, there will be a day when it rises again.