reading for the first page that you says

" Most of the people lose money on gambling because of greed and emotions.
Once you master the technique to overcome greed, gradually you will learn the art of money management"

indeed that was true but you were forgot the most important thing in gambling and it's called luck because even you're not greedy and could control your emotions but doesn't mean you will got profit and lucky is very important if you want to get the winning and nobody could predict the gambling results