Some golf instructors get overly technical and teach the mechanics of the ideal swing. That approach didn't work for me. So, I found a pro that didn't insist that I learn Tiger's swing. He accepted my physical limitations and improved my game by focusing on the minimal golf skills that I have.
I dropped out of school to play poker, and at 21, I moved from Toronto to try my luck as a pro in Vegas. I ate the typical meat-heavy diet of most poker players in the '90s: burgers and steak, along with French fries, mash, and a bucket-load of wine, beer, and vodka. There was nothing fresh in my diet, and I felt terrible.
In tournaments, players typically raise when they enter the pot. In cash games, though, players are more likely to limp in before the flop. That's because cash games are usually deeper-stacked, meaning that players will have a higher ratio of chips in relation to the blinds than they would in a tournament.
I like to peruse the Full Contact Poker online forums to read and comment on posts about interesting poker hands and whether they were played properly. I find that many of the contributors consistently suffer from the same problem: they are far too preoccupied with statistically insignificant aspects of a poker hand.