Last year's cryptocurrency was very weak, the rate of decline was very inefficient, even investors were hesitant to invest, but in the middle of this year bitcoin and other altcoins slowly increased but surely, don't be surprised Cryptocurency to the moon in the following month ...
I think that the year 2019 brought a lot of profit to investors who bought Bitcoin at the beginning of this year. I did not expect a global market growth in 2019.