You are a junior three student, and you feel that your grades are very poor. You can evaluate yourself correctly. This is a kind of growth for you. I'm afraid some people don't know themselves. Don't be discouraged. Since you haven't laid a good foundation in junior high school, you can stay for one more year in junior high school, which is equivalent to reviewing for one more year in junior high school. At the same time, you can systematically study the courses of Grade One and Grade Two in your spare time, especially when you have feelings. Under the guidance of the teacher, understand these oriental knowledge thoroughly, make a plan for yourself, and implement it step by step and in a down-to-earth manner. Don't be confused, it's not too late, there is still time to work hard!