From my point of view bitcoin is defined as the non regulated currency in the world but it regulates us in various different ways like investment, future plannings, losses and profits.
It's basically fluctutes on market if any havoc creates within the market its price suddenly goes down that's will be the loss if any good news comes then price increases suddenly.
Huge volume traders (whales) know when to buy and sell their bitcoin but they acts smartly, they were always in profit.
We people or known as humans do lose our patience easily and we invest at higher price but about 60% people lose their money because of price drop.
This is truely a game of graphs and line where we have to keep a record how to invest and trade at a perfect time.
I want to share a great technique(when everybody buy you sell and when everybody sell you buy)
Every country where btc is legal tender, atm's were established to buy and sell. These machines are very handy and anyone can use them easily. You can also transfer as a money instantly. It is more secured then paper or plastic currency.