If you were your English teacher, would you want you in class?
I don't mean that as some weird philosophical question. I mean, try to put yourself in your teacher's place and imagine what it would be like to teach the current, high school version of you. Would you want yourself in the class?
If you were your baseball coach, would you want yourself on the team?
If you were the editor of the school paper or the drama teacher or the director of the non-profit where you volunteer, would you be happy to have yourself involved?
If after careful consideration, the answer is, "Yes," why is that? Whatever the answer is, do more of it.
If you'd want yourself in class because you really love English, you ask great questions, and you're always respectful of other students' opinions, accentuate those strengths as much as you can.
If you really wouldn't want yourself in class because you look bored, you never participate, and you complain about your grades even though you know you could have worked harder, then good for you–you were honest with yourself, which is not an easy thing to do. Now decide how to minimize those qualities.
This isn't about changing yourself to be what everybody else wants you to be. But people who can see themselves through other peoples' eyes are a lot more self-aware. They're more in touch with their strengths and what they can bring to a class, team or organization. They understand their weaknesses and how to minimize them.
And they tend to be people that others want in classes, on teams, in groups, etc.