Here we have only the option that we have no value in our life if we are experts in the bitcoin hold since one or two years .
Because I am a old trader as well as bulk bitcoin holder who has experience to hold lots of patience and also ideas to have bitcoin profit in any circumstances.
Here when the price of the bitcoin get down then I bought small amount and after that after small increase I sell them , so in both the situation take advantage of down as well as price up .
So overall here we need to have use of mind at the proper timing to buy and sell only and nothing , if you will get panic that you are getting loss with the dump in price then surely you will be in loss because you will sell at low price .