what the fuck is wrong with me. every time i do dips, i feel

If you have no mobility issues and very flexible shoulders then that's just how it goes.

I just straight up can't do skull crushers or upright rows, I hear clicking and it feels very uncomfortable to do the motion.

Check your form also, you might be going super wide or facing too far forward

>>42203384
some people just aren't built to be able to do them

you might be one of those people

>>42203416
>>42203425
I'll try stretching and not leaning too forward but I really hope the case isn't that I'm not built for it. Bench and incline bench only is getting pretty boring for chest

shoulders back and down, try to keep your body vertical if you're trying to hit triceps. don't let your shoulders slump forward/up at all. if you're feeling pain you need to do negative dips until you can do them properly. or do assisted dips if your gym has one of those machines, no shame bro.