I've said this a lot and I will keep saying it, the job you choose and your knowledge of skills and how to use them do not matter in this game. All jobs follow a strict rotation that you will learn and execute without deviation. There is no player expression or skill expression and combat always comes down to learning the dance for the current boss and executing it. There is no boss, no dungeon, no piece of content in which you will want to deviate from the established rotation for your job.