Delete Clemency and Vercure

[tdb]

It's also the fact that your effort to play optimally goes to waste because of the dps loss of using those abilities. When I'm doing my best to maximize my dps as healer, I'd expect to get the instance progress faster due to my efforts, not stall it even more because the RDM or PLD decide to Vercure/Clemency.

Honestly, if you want to optimize your gameplay to the level where everyone needs to play perfectly, you're better off playing with friends. With randoms there's just so much variance in player skill that it's just poinless to complain about minor things like the occasional healing ability.

The thing is that I can't decide on which job to main

I would recommend one of the tank jobs, since clearly you want to be in charge of the run's pace and don't like others to do your job. The tank role fits that. Healers meanwhile are the ones with the most ability and expectations to adjust to what the rest of the group is doing, which seems like a poor fit to your personality.