I bought 3 BTC on credit for 19k about. What should I do? I am way underwater.
All you have to do now is you have to hold all the Bitcoins you have until the Bitcoin price goes up high again. Do not let you sell Bitcoin that you have at the cheap price. You must be extra patiently waiting for the price of Bitcoin to be at the top again. I am sure by the end of 2018 this Bitcoin price will be very high and you will benefit a lot.
I doubt if that amount can reached again this year, but it will be reached again for sure the date only is undefined, it just really shows that buying at peak in any coins leads to a more long holding, but atleast in btc we are sure it will be reached again, unlike in other alts.