Yes, a winter of 2-3 years is coming, if you don't believe this you will lose all your money, you need to understand how to play this game, holding is just a good idea if you really don't care about the invested money.
Bears are in control.
If the bears are coming, then so be it. I will still hold my coins for some time and I will buy more if the price is getting down for deep. I already take my profit before. I am okay with what happened to the market, but I still want to profit from the market to wait for more. I still hope that some altcoins can increase to give me the profit to get the money from the investment.
If we are not selling any coins in the bear trend, we only lose the value of the coin and that value can back increase in the future. But if you sell the coins, that will make you worry if you can not make a profit in the future because you can be late to buy back the coins.