In short, I have adopted a formula for myself that your thinking as a bettor will develop when you study different sports and compare them with each other. Do you think this development really happens? If so, how does it manifest itself?
if I am going to bet on one spot I see no reason why I should study different other sports. For example in my country I could say that our national sports is foot ball and if I am going to because serious at betting on football to have a chance of winning then I should be able to study the game and the different leagues and the different clubs. These would help to develop the understanding and knowledge to bet on just that sport with some confidence.