In third position between the casual player who occasionally falls into the habit of trying your luck with games of chance and use it as an entertainment, as a means of recreation or even as a way to channel the anxiety and nervousness of life daily, and a compulsive gambler, who spends an excessive amount of time devoted to that, because of lack of luck or talent, it should be just a hobby, is the envy of professional player.
The professional player has enough knowledge to weigh all the elements that make up the wonderful world of gaming, and articulated in a certain way to succeed in creating methods of play. Balance is the standard governing their conduct. A pencil and a notebook can be a good idea for a player with pretensions of being professional roulette.
For example. Keeping track of the results that come out is very important to many existing roulette systems. When starting a game system (the only way that in the long term can expect to gain, because luck is the companion on long trips), a player must act in a disciplined and trusting absolutely absolutely the tactics being used, without being guided by impulse and without the pretension of magic solutions.
Either of these two possibilities could easily divert the system you are tracking, creating serious imbalances in a game where you control one’s actions is as important as recording the results.