so I got my first 40$ worth of bitcoin i noticed that the that the 40$ goes up and down. Im scared that it will go to 0$ is this possible?, Should i spend my bitcoin on a giftcard? any help please
If you don't have to spend that amount of Bitcoin then just hold it. You don't need to be worry of being devalued because Bitcoin is still used by everyone so it can not be devalued in this time and very far future.
"Very far future"

. You are really correct to use this word, we not know after SegWit2x can helps Bitcoin and crypto market can recovery or not, maybe as 2013-2014 the price will continue falldown and the bubble growth of cryptocurrency in 2017 will end in that time