ouch a sad story, buy 2 btc at 18k, now at 8.5k you've lose half of your total capital.
That's just a small loss compared to what people loss investing in altcoins, but actually it will not be considered as a long if he will hold until the next bull run will arrive. In terms of chances, BTC has a better chance to recover and that $18,000 is not impossible to achieve with the way the market is moving now, I can sense there will be a big bull run coming soon.