A decline does not necessarily have to end with a plunge. A long unilateral trend can also have the same effect. Because a plunge can only bring greed, not fear. Endless declines are much more frightening than a plunge!
Buy the best coins. If you can't afford one Bitcoin, I'll let him buy 0.1. If Bitcoin goes bankrupt, what can other coins do?
Buying altcoins is gambling. Although wealth is sought in danger, some bets violate common sense. I will habitually retreat. Except for the big cake, no coin is worth your all in.
Finally, if you are a pure novice, and you want to rush into the currency circle when you see BTC hit a record high before, then I suggest you follow me and learn from me, learn the knowledge of the currency circle with me, and make up for your basic skills. A tall building rises from the ground, and glory can only rely on yourself. Only by laying a solid foundation can you go further.