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 
I think we need to be calm. That's why its very important we have knowledge before we enter in trading. If youre upset to see the market drop, you should be encouraged to know that it always has risen back up to new heights. If you panic and sell when the market drops, you miss out on these gains.