I'm not a teacher. I do not claim that I know what I'm speaking about, yet I'll still make the attempt in congratulating you and praising you. You're not a hopeless case! Actually, this post proves that you are naturally intellectually advance. Most of your peers do not recognize fault, and thus, they restrain themselves. You, on the other hand, have made the bold proposition: you believe that you're doing something wrong. Your judgement has illuminated you, and now that darkness doesn't seem so dark.
Here are my recommendations to you. Read Montaigne's essays. I highly recommend his essay on education, translated by Donald M. Frame. You can find this essay in a collection published by Walter J. Black, Inc. Most used book stores will have this copy laying around. Then read Hutchin's Address, or The Great Conversation. It's an excellent book that will prepare you for the meatier stuff. After reading those two books, you need to buckle down and read a MLA style, grammar book. I suggest something light to start out with like The Holt Handbook. Finally, go to college. High school is not the end of your formal education, nor should college be an end. Your personal education (or intellectual expansion) is the end. You will always be learning new things, and if you refuse to change yourself and expand your mind, then you will subject yourself to natural ignorance.
So my checklist for you is as follows: read Montaigne, read The Great Conversation, read a grammar book, go to college, and liberate yourself from a sleepy ignorance. You have the power inside you to take over your life. Do it.
Student or Learner