Part of the genius of the Pathfinder RPG and D&D lies in the class system, providing instant fun and a role for players. However, that same genius can also be the game’s downfall.
Players tend to think of their role in the party first, and that’s perfectly reasonable; it’s better and easier, as well as more fun, to play a particular role. Specialization and focus make a party more powerful. However, the moment a player decides not to try something out of their comfort zone, whether because they’re dealing with monsters that resist their attacks or a social situation with high skill checks, that player has failed to be flexible.
Because anything can happen in a pen-and-paper game, a player needs to be up for anything. There will be all kinds of different encounters, and you have to keep in mind that just because your character doesn’t specialize in something, you shouldn’t ignore or avoid it.
Don’t be afraid of failure. Failure is good.
Even if things don’t go your way, any story will be much more interesting (and amusing) if the characters fail occasionally. That’s the nature of storytelling; that’s how we know that the challenges are real. And everyone having more fun should always be your goal as a player, not just getting more powerful. If you design your character to do just one thing really really well, that’s fine unless you stand around doing nothing in every other situation. There are a vast number of ingredients in the stew that makes a good roleplaying game; being flexible and willing to fail really spices things up.
-Max Porter Zasada