The importance of theory in the game of poker

The key is to think: is it worth devoting considerable time to the study and theory of poker, or is it better to devote himself exclusively to the practice? and mainly What is the way to maximize profits?
A first reaction to these questions is, "that I'll spend reading endless (and sometimes unintelligible) theory books, watching endless videos and discussing hands played if until now I've never done and so badly has not gone."
On the one hand this is true, most players play up to a certain stage without more help than their own enthusiasm and much prodding. On the other hand no guarantee that having invested hours and hours in the studio of poker them successful, or that if they improve the difference ends up being higher than the profits that could have been obtained playing.
As already stated at the beginning of this note, poker is a game of choice. So if you decide to take this game more seriously this involves risk, requires patience, enthusiasm and confidence in one's ability to capitalize on the knowledge acquired.
Very good luck!

I agree with you I once tried to play waiting for only good cards came to prize and third place, but of course you need patience here is very good,did not advise me something from the literature how to achieve success and start earning from poker?