Why we should not sell our BTC now??because now we are in floor

if see correct now we ARE in floor of price...when you,re mining BTC and its costes to you near 5000$ is it true to sell 6000 or 7000$??now if you sell in these prices maybe yo help to lower price and maybe you heat yoursef soon in higher price than now..ok this pattern is nothing if you sell for panic and ear to bad news from banks and badmans in internet world..Thank you