The present situation of the market has caused panic into the minds of some crypto enthusiasts. Some have not seen so much dip as this. One thing i know is that, crypto is very volatile. So no matter how much it falls, it will definitely rise back. Just watch out for what will happen in few weeks' time.
I will only urge you to wait and do not sell in panic.
This is the reason why Bitcoin is falling
https://www.coindesk.com/no-surprise-here-crypto-yawns-as-sec-kicks-can-on-bitcoin-etf-decision/People are waiting and see what happen if Bitcoin will be approved or not, we are all hoping that it will eventually approve
I think investors and traders alike took the SEC's postpone decision of Bitcoin ETF negatively as if it is a sign of rejection (since this is one of the most 'promising' ETFs proposed to the SEC). Shortly after, articles started popping out about 'experts' in the crypto world speculating that the first ETF will be approved in 2019 (February, to be specific).