I'm in the 4th year high school now at Kosolphattharawit School and I'm really getting in touch with my studies.
Being a good student is so easy to do. All of the lecture of the teachers must be in your mind always and don't stop listening until the teacher has finished the discussion. Being able to listen and use your heart at your studies would be a better thing to do. There are lots of situations that if your classmates talk to you, you will feel that you didn't catched up the lesson of the taecher's discussion and explanation but, the real thing is that if you are willing to listen, it doesn't matter how your friends talk to you if you don't listen to your friends.
Not listening to your friends at the middle of the class is not the meaning of you are annoyed of what they are doing, it's just because you wanted to know what are the lessons that your teacher is teaching. So, being a good student is very easy and it's not the hard thing to do in your school life.