the more days the bitcoin price slumps down, how do you think, whether the price will stabilize or it will keep falling down ,, seems like I'm getting scared 
To be calm is always the best thing to be at any instances. The market is indeed falling but to think that it is a normal thing to happen not only in Bitcoin but also to most of the cryptos, there's really nothing to be worried too much about it. Well it is a bit scary but we should rather see it as an opportunity to invest and earn huge profit since the market price is low and it will allow the investors to buy at low price and earn profit when the market starts to rise.