The factor that affects price mostly is, Market manipulations from the financial institutions,the news,the FUDs, and most importantly, technicals these are the things that you should be watching out as they are going to be a good trigger for your trades, this is the butterfly effect that is why we need to be sure to our all decisions before making a conclusion.
People's willingness, governments, bans, market news, economical situation, american central bank, european bank and these kind of factors can affect bitcoin price and they're actually already affecting.