To those that usually stick to one archetype of character throughout most RPGs-

[van_arn]

For the longest time, I only played a tank. I -hated- alts, because creating one meant I'd need to redo the entire leveling experience along with all of the busywork that entails in a traditional MMO: content unlocks, quest completion, attunement/gearing, and social links since so many names are in play.

XI and XIV were the first games that pushed me into alting, though I still narrow my focus once I settle in for a bit. I can still have fun as a tank, healer, or DPS, though-- and since I'm not changing characters it just feels like I'm playing one character that has talents to fit the situation.

As for finding the "right" job, you really won't know what it is until you touch it. Don't feel like you're ever locked in or are making a "wrong" decision, since you can always swap weapons and try something else. If anything, that's the biggest advantage of the job system: the flexibility to try what you want without penalty for making the "wrong" choice.

You might find you like some jobs more and less as you progress through the storyline and the job's questline, but stick with what you want but try what you think you will hate. You might actually find something new.

That and some days you'll get a tank so bad you want to swap to a tank to not experience that again, a healer so bad you want to heal so you don't have to suffer that healing again, or dps so bad you swap to a dps to just push buttons in peace while the world burns around you.