If you don't find joy in your workouts then you need to break up with your trainer or gym.
Life is too short to be swearing all the time while you sweat. There should be some element that makes you smile. I'm not saying the entire workout should spark joy. Nah. You are not sitting poolside in Bali drinking cocktails. But there is some element of your workouts that you should dig. If not? Then you need a break-up plan ...
It's great to like the people who you exercise with. In between the sweating, there's hopefully some banter (at least before or post workout) where you connect with an epic community. A joyful part of exercising might be helping others learn new moves, or you learning from others who are more skilled.
Maybe it's the environment you love — it may be a place that lifts you up and helps you feel calm.
If you hate the actual workouts ... then please quit!