Change it up… Go to the gym with a friend/workout partner; change the exercises you’re currently doing for specific muscle groups; go to a different gym; go on a hike; swim some laps/pool lengths;use different cardio machines (rowing/elliptical/ treadmill/stair climbing machines); join a boxing/MMA gym. It’s easy to plateau or become bored if you’re always doing the same thing. Good luck!

Intensity! I don’t usually do high intensity workouts, the minute I do I’m like oh this is different. Force yourself to do something else if you do traditional lifting get into cross fit or power lifting.

Other hobbies like hiking for leg day and rowing for back day?

Run 4 days a week instead of 5 or 6, rarity increases value