I guess we will see everything fall and bitcoin rise 
I dont think it will drop below 400 in the next 8 months.
It is not smart to sell everything at once because the value of the Bitcoin can always go up again, that means that you still can make more money. I dont think it will drop below 400 in the next 8 months.But if you have just sold them all then it is not possible, you should always save some instead.