You must not lay all the eggs in one basket, and then the basket will fall and everything will crash .... You need the main portfolio of investments to keep in the top 10 coins))
agree with you! It is necessary to diversify your investments and keep coins on cold wallets. Otherwise, you can lose investment
in any case, you need to have a portfolio of at least 10 different coins. Thus, it was and minimizes all its risks. In addition, judging by the current state of the crypto-currency market, it is better to leave the coins for long-term storage, since any sales will bring you only losses.