Playing blackjack as a hobby or pastime is very different than playing as a professional. For a start, you have to make enough money to make a decent living. When you take into consideration the tiny edge the professional player has over the house, you'll need to be playing more or less non-stop to pay the monthly bills. If you want to make the transition from amateur to professional, then you'll need to learn a huge number of playing elements to help you win consistently.
Stanford Wong was the pen name of the blackjack author and team manager, John Ferguson. Having been interested in card games in his youth, he later was to form 2 very successful card counting blackjack teams, who would take casinos to the cleaners. But money was never his driving force. That was to better his knowledge, and he often took much less of the profits as he regarded the data collected from their adventures to be the most valuable commodity. Eventually, his identity was revealed on TV.