When playing online, download an odds calculator. This will help to curtail your gambling instincts and increase your understanding of when seemingly powerful cards are much weaker than you realize. The programs themselves range widely in usefulness and price (from free to ad-supported to free-trials to $40 for the full program). Many will automatically plug in to the gaming software and auto-read your hole cards and the board. Just do a google search for "poker odds calculator" and surf around for a good choice. Or check our reviews section for helpful suggestions and reviews of the better, and worse, odds calculators.