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.
Yeah, I think we should buy bitcoin at this price and save it for few months, and sell it after the halving, I am not sure about the mining part, so for buying, saving and selling will be more profitable.
I hope later that more people will save it and sell it later if the price is very high. So we can sell it with profit and that will be good.
I think that is the correct decision to make to hold it for the next couple of months, as you said that the price is not high at a moment, so its better that we wait for the next couple of months and sell it at the time of halving when the price will comparatively higher.
If the price remains not much a difference after the halving.. then yeah its time to sell.
Well this is what Im doing, since I cant wait for another 4 more years for a solid #. I`m getting old, time is running out.
That's correct majority of us will sell their coins if they don't see any difference after the halving, and that will affect the future of bitcoins for sure.