Bluffs done wrong are big money makers - which mean they are big money losers to someone, and you don't want that someone to be you. Anytime you toss money into the pot in a game of Texas Holdem and you are not holding the nuts, you are risking a loss, and becoming a good poker player is all about how to manage that risk.
Before you even sit down to play, you need to know how much you are ready to risk. Knowing your risk tolerance helps you select the right game, and as poker is all about making the right decisions, picking the right game from the get go sounds like a good idea.