Alright, i will take a shot at answering this "question". I hear this a lot, from people, who say "im such a dumbass", and arent joking. This could be because of their grades, or just a low self-confidence. If its because of the first one then i will tell you once and only once, grades dont determine your intelligence. It tests how good you are at school. But, if it isnt because of your grades, and because you lack self confidence in many areas of your life, then I would urge you to message me privately.