Best way to prove to your mom that you are responsible is to show her. I don't know what your life is like, but you can start doing things that show independent responsibility -- that you can take care of yourself and act responsibly toward others. Like I said, I don't know what our life is like, so these suggestions may not apply but hopefully you get the picture: do chores without being told even if they are not your chores to do, or offer to help out (clearing table, mowing lawn.) Keep your room clean and maybe also reorganize it to show initiative and a mind of your own, take an interest in subjects of your own choosing and pursue the interest (I don't mean just girls!) Take out books from the library and converse about their topics with your family. Etc. With parents, with most anyone, actions speak louder than words. After you have established a few of these patterns, re-evaluate and think about a heart-to-heart with your mom. A key concept that may give you some freedom is "compromise."