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.
Many advices out there that despite of decreasing value of bitcoin in the market they are still asking and going to hold their bitcoin because they believe it will change before this year end. Some are thinking to doubt it because some belief is" to see is to believe". Well, if you want to sell it now and afraid that maybe it will going down again then sell it if you want to because its your decision.