No matter how good you are in math and probability and all such stuff, i think it will still not worth it in gambling. In gambling only the Luck counts and if you have good luck then no one can beat you in gambling.
Math has nothing to do with winning in gambling games. If that was true then every mathematician would have been able to beat the house which did not happen by this time and hence can be considered by common sense application but majority of the people here lack that much brain. Again a mathematician would not need to gamble for a living. 
What math can do is help in EV+ games to make predictions but in EV- games its a waste of time trying to develop strategies because every strategy will fail in the long term.