I relate somewhat to this and those were two reasons I didn't exercise for a long time.

1) Feeling like shit: I found out that when I felt like shit it was a sign that I was going too hard. After falling off the wagon a few times because my workouts were so unpleasant, I decided that instead of quitting, this time I would keep going to the gym but just exercise like a pussy. Turns out light to moderate exercise is dramatically better than no exercise. Exercising like a pussy has eliminated all the aches and pains I used to have, fixed a wrist that was developing carpal tunnel, fixed a bad knee, lowered my blood pressure by 12 points, etc.

2) For me cardio is mind numbing, but weight training isn't bad. I mean weight training is basically doing a set, then sitting around for a few minutes messing with your phone or listening to a podcast or reading a book or whatever, then repeating. This is why most of my exercise is weight training, and my cardio sessions are 20min max. It works just fine, you get a ton of cardio from doing compound lifts. Also my gym has a jacuzzi where I can zone out after my workout and listen to podcasts, this turns the gym into the highlight of my day tbh.