Yes I still believe in the bitcoin because it has a great future and will go to a higher amount without any doubts.
It will stay here for most of the time in my eyes.
The question is about fiat, it is not about bitcoin. OP is asking if you still believe in fiat or not.
Well, for me fiat is still believable as right now we cannot use bitcoins where we can use fiat so not trusting fiat will leave us no option for now.