We should trust our experience in trading even though the situations got worst, and I don't think panic selling is the solution. What will happen to your future profit if you sell it all due to you're panicked? That's why we should stay stronger and keep the faith burning so we could stand against negative speculators.
Its yes, during my long time trading experience I have not panic yet, because I know every action or move of cryptocurrency just in case it goes down, over a period of time being a trading too much I made a mistake, so that mistake was a lesson for me.