We want to hold or sell our bitcoin in a low price depending on our beliefs and goals, not necessarily we hold back in time long enough bitcoin prices we are getting up. It is very risky investing in bitcoin, requires experience and patience. If we sell bitcoin in a state of panic and when the bitcoin price drops, we certainly lose and regret. We must be sure bitcoin is not easy to die or crumble, we just need to be patient waiting for the rise of bitcoin. Only then you can sell it, or hold it again.