I have to say, sometimes this job just grinds you down.
I have seen it happen to many many pilots. People who would come to work and absolutely hate it. They had lost all enjoyment of it, could see nothing positive in the daily grind of line flying.
The flip side is that I have also seen pilots, forced to retire, dragged kicking and screaming, out of the crew room. These are the guys that loved every second of it. Every thunderstorm, every visual approach, every touchdown.
It’s horses for courses, some love it, some hate it.
most of us are somewhere on a scale in between.
Good luck with your decision, given you have grown to hate it, it’s probably for the best.