It hurts when you
-had bad news,
-a broken heart,
-someone ghosting you,
-injured
-were said something mean
buy hey, you are still living and unless the scar isn’t this severe like this t-shirt, you’ll recover eventually.
homeopathy, similar things helps to heal, so listening sad song or watch some sad movies might help you, let out your sadness to the piece of paper and later tear it and trash.