Professional Gamblers

I know it's a common thing to say 'trading is just gambling' but even though thats meant as a criticism there's definitely people that make profit from both!. Just curious to know if anyone here has gone from a poker/sports betting/card counting background into trading? Or vice versa even? Obviously there's a lot of shared skills and mindset that are key to being successful in both, like being able to withstand large wins and losses and not get caught up emotionally.