It's a good idea not to take a risk and just hold your bitcoins, becuase you will never lose your money if you are attentive enough, i believe on you 
with bitcoin if you hold it it is impossible to lose your money because in a longer run the bitcoin price is going to reach a new all time highSaying that you will hold your coins till the price reaches a new ATH is very different from actually holding till a new ATH. I am quite sure that probably 90% will sell their coins once the price reaches the $800-$900 levels. Only a few people will be able to actually hold out till the price reaches a new ATH.