The reason that your question is a bit concerning is that you seem a little out of it. I hope you take care of your mental health and re read with an open mind. I truly think of you as a dear friend of mine and hope you learn to read things carefully. This includes reading dates. You probably score bad on exams because you forget to read important dates, especially in history. I do hope this helps you realize how far you need to go in life. I only hope the best for you, but life would have no meaning if only good things happened. This is a vital mistake that you made and truly learned from it. So I hope this answer helps you understand the degree of your question and helps you acheive self-fulfillment.
Best Wishes,
Your Best Friend