I don't know with the poker game because I never play on that game but all I can say for any gambling game including poker game, the result will always about win or lose, no matter the game and no matter how good you played. But I guess that you are one of the pro poker players because you are playing for a full-time in a few years.
I agree that information is power because if we can collect as much information from many sources, it will help us to make a strategy in any games and we can increase the chance to win although we still need to depend on the luck factor.
How can I say that you are a pro gambler? You are stating by yourself on this:
For a couple of years, I had a lot of success betting on football from very obscure leagues. I had an algorithm which was great at spotting games where bookmakers had not priced up correctly.
So you got an important lesson from poker, and you will know what you will do in every time you playing gambling besides to expecting to get a win in the poker game or other gambling games. But you need to remember that not all of your day will get lucky because you never know when your luck will come.