I actually bought some Bitcoin in the 3rd quarter of that year (2017) and to tell you guys, I'm still in big regrets why I'd never sell it when the price reaches its peak. It was a big mistake but it never gives me losses by then since I sold it early 2018 and the price still in good but it actually most daring if I could sell it when the price is $19k ( it supposed to make it triple from my buying price).
But anyway, it passed already and we'll have to move on and face what is the coming. I know it will be fine in the year and onwards.