Shut it you demeaning, ignorant, jerk. Not everyone believes in your definition of "mortal sin" or even the concept and telling someone struggling with something so profound to "not be a crybaby" is one of the most rage inducing, unhelpful and ridiculous things I've ever heard.
In case you're serious, it's because "do not be a crybaby" is not an appropriate response to someone suffering from mental issues.
If you said to me "Hey, I cut my hand really badly, and I'm bleeding quite seriously. What should I do?" it wouldn't be correct to say "do not be a crybaby." The right answer is "Go to the hospital and get some stitches."
It's the same with mental issues. They're a wound like any other.