Some country are now accepting bitcoin as currency and the billionaires is now hoarding thousands of Bitcoin. Should I wait for the success of El Salvador's implemetation of bitcoin before investing?
I think if they become a more successful country by accepting bitcoin, others will implement too. There will be more investors and the bitcoin will be pump again?
I just hope I'm not wrong this time. 
You look like a "gambler" so to speak. Someone who buys in the short term hoping it will go up and sell, and ends up selling out of panic at the first dip.
Educate yourself about Bitcoin, about its origin and its intrinsic properties. When you have done so, if you decide to invest, it is best to do it in the long term, it is what you will understand when you have studied it, and then you will care less about those things you mention.