Try “real-money” Texas Holdem poker online. It is a single player game, meaning you do not need to worry about looking like a fool in front of your family and friends–and it is very easy for beginner poker players to learn! No other option for poker is as convenient, fun, and challenging. It will open up an entirely new world to you and give you a true appreciation for the skill and knowledge that many players have learned over the years.
If you want to try out free poker, try Texas Holdem. If you are just learning the ropes and want to start playing on a regular basis, try Omaha.