being a newbie is not an excuse for not checking the history of bitcoin.
to put simply price has always been fluctuating like this and has been pretty volatile. in fact it has been a lot more volatile than what you are seeing these days.
the volatility is a part of the small bitcoin market and as it grows, the volatility is also decreasing. as i said if you check the history by looking at some pr ice charts you will see this clearly.
finally i should remind you that being volatile is not the end of something! that doesn't even make sense if bitcoin has a "downfall" as you put it just because its price is not increasing and decreasing with your standards that you have in your head.