of course that it is very tiring job but just for your information most of professional trader do that and they enjoy the process. i don't agree with your statement that 'maybe most of people do not like that' because not everyone want to predict the price of bitcoin (almost) accurate as they can, except A Trader
they try to analyze the graph and stay tune but actually didn't need for long time. because their data nt only from the graph, volume, and market. but news feed of cryptocurrency.
news is a very strong driver on the market... if you're really sensitive and have huge experience, you can earn much more than others just if you understand a value of some news and make some changes in your portfolio couple minutes before crowd do the same