How did you do that to yourself?
Is there more context to that last part? I'm assuming you don't mean to keep pushing through an injury, possibly making it much worse. Or even to do an exercise that you're not built for, since there's no magical must-do exercises.best: if there is something you can't do, you must learn to do it.
worst: if it hurts, don't do it.
In my late 30's when I returned to the gym from my college days I was told not to squat any lower than where the pain started, basically 1/4 squats. The doc said my knee looked like broken glass on the mri, and I would be getting it replaced in under 5 years; less if I continued to squat.Is there more context to that last part? I'm assuming you don't mean to keep pushing through an injury, possibly making it much worse. Or even to do an exercise that you're not built for, since there's no magical must-do exercises.