Actually now is the time we should buy bitcoin because its price is low. What will be you should be afraid of is when will bitcoin rise its price. Or will bitcoin rise? For sure it is, you should have to take the risk.
I think we should not be afraid will it rise again because sure it will as the price is low now which an opportunity to buy bitcoin. Every investment always has risk but not taken it will not give you profit. Bitcoin is become usable because it applied for payment that is why buying bitcoin is not only for profit instead it has to be a currency.