of course sell it, if you play the trading and intend to keep it for a long time, you might lose, it was I proved myself, but it's up to you bro 
It won't be profitable to sell it with current price, price is not the best at a moment, its better that we hold it for next few months, and sell it after the halving when the value of bitcoin is in better position.
Or at the very least, save part of what you're mining, you'd probably make more profit that way.