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.