I think that now you are increasingly asserting that you were right. After all, the facts are formed in such a way that a weak, inexperienced and insecure investor can easily believe your words. Now many are subject to panic. But...

But let's look at the situation more broadly.
1. In December 2017, there was a very strong bitcoin pamp (and the other altcoins, respectively). In the market, asset growth cant last forever, it is a priori. After any growth, there will certainly be a price drop - a correction. Accordingly, after a mad growth will follow a deep correction.
2. Large investment funds still cant legally begin to buy cryptocurrency. And in order to make this possible, we need certain permissions and an attractive price. Have you ever wondered why the ETF bitcoin has already been postponed several times? Perhaps in order to negatively affect the price of Bitcoin (and the prices of all altcoins, respectively). And as a result, we will get very low prices for Bitcoin now and ETF Bitcoin in February.
I don’t know about you, but personally I see in this a carefully developed plan. Moreover, I suppose that after ETF Bitcoin and BAKKT futures, the low price of Bitcoin will continue for some time. Because funds will have to be carefully purchased at low prices. Of course, as a result, in 2019 we should not count on a significant increase in the price of bitcoin.
And everyone who wants to earn on crypto currencies just need to understand what you need to learn to trade. And then it’s not at all important what the price of bitcoin is, the main thing is that it will still grow, then go down, and this is the main thing that is needed for earnings.

The decision to see or hold is what makes or Mar an Investor or a holder of any cointoken.  I have come to think of this and check the advantages and disadvantages which I concluded that sometimes it's luck to sell at the top, it's disciplin to sell at some point and not be greedy. It's determination to hold and not sell even after some loss and it's dedication to continue holding even if it turns to shit.