Yes, countless people have turned playing cards into a full blown career. Make sure that you pick a game where you can grow as a player, though, such as Texas Hold'Em. If you play cards in some other versions with fixed RTP rates, the house edge will come and claim your money down the line, eventually. But it's definitely viable to turn playing cards into a career - as mentioned earlier in this review, there are several players that have made more than $50,000,000 during their cards careers.