You can try your hardest, you can do everything and say everything, but sometimes people just aren’t worth trying for anymore and they aren’t worth worrying about. It’s important to know when to let go of someone who only brings you down.
If babies held the same tendency toward self-criticism as adults, they might never learn to walk or talk. Can you imagine infants stomping, ‘Aarggh! Screwed up again!’ Fortunately, babies are free of self-criticism. They just keep practicing.