Price of bitcoin increased because in 2017 many people get involved with it.
And old bitcoin users make HUGE profit, and new users Get scared.
What we need now, People need little study about what they wants to do.
I hope it will be fixed soon to make it profitable again and i believe that the reason why crypto is having a huge drop its because of no proper regulation of crypto market were crypto market introduces many coins almost everyday and not not profitable that causes of losing too much people.