In my personal opinion, if you aren't enjoying the game at all now you probably won't like it any better later.
DPS queues won't get better.
I do agree with others the story pacing gets better in the expansions but if you aren't invested at all now there's no guarantee you'll enjoy them any more. ARR has a lot of setup for later events.
Combat at max level involves figuring out how to maximize your rotation around the fight mechanics. Every job will have 20+ buttons and while some will be situational they should all be on your hot bars.

If you want to give it more of a chance I'd say unlock your job and see if the combat style appeals to you more when you have some Ninja skills to weave in. Otherwise I say move on to something else.