I think bitcoin could well reach $2,000 - $3,000 if this $6,000 support get's broken. If you would sell now chances are high you could buy back and thus double your btc holding.
This is not financial advice, just a thought.
And this is not a good year for crypto I believe. Late 2019 we'll see some action.
Bitcoins reaching $2k - $3k dollars is just your assumption, the market price managed to grow back to $6.4k from $5.6k dollars yesterday and it was a good sign that there is a huge chance for bitcoins to pump up immediately anytime soon.