It's not really something that can be defined for you. If you enjoy it enough to play despite the utter randomness of even ranked match making you do. If you don't I wouldn't bother. No sense making yourself miserable in an attempt to enjoy something you don't.

As for tab targeting, I find a key bind for closest enemy helps a lot but I also just mouse people often. This isn't great advice since you may play with controller (sorry if so).

The time gated stuff has been mostly meh and the rated locked stuff is not worth the time unless you really like minor ascetics. I glam the NIN weapon for instance, but I only play it in PVP. So mostly pointless. The frames are worse as they mostly shout focus me or "I'm that guy" to anyone who sees them. It's basically PVPs legend status. It should mean something, but we mostly heckle it as it was free across multiple seasons.

Yeah, the stun locking is commonly disliked. I agree the huge 99.9% to 100% comebacks suck. I would rather play two games in that time and maybe even win both than win a single 20+ minute game. Again, much of the Overtime design is commonly disliked.

I would hope nobody would humiliate you for asking a legitimate question and voicing your point of view but if you do return, please don't let any negative rhetoric get you down. If you enjoy the combat I hope you continue to play, but the rewards just aren't worth it alone.