Dont panic at first. stay still .. wait for the right moment. try other stuff , then be back on the increasing market value of the your assets.. Market place is not so stable on some point, just have enough knowledge in your game. find a fast moving game plan so your coins, will not be stagnated.
I do not see any reason to declare the degradation of the cryptocurrency market. This market is actively developing and therefore a lot of newcomers come. They have no experience and skills. But it is temporary. As long as there are newcomers on the market the market lives and develops. For me, complete degradation is the Fiat market.