The first time I came to India, I sucked at their grading system and it broke my bubble of being a precious snowflake who always did well. I think that was a good thing really; it got me used to the idea that grades could go fuck themselves. Much later, when I changed careers and started doing more math here in the U.S., it helped a lot because the whole idea of getting a B+ didn't matter so much. I knew a lot who were in my math classes who were probably smarter than me but dropped out because they couldn't handle the idea of struggling.