Hi, Teen. You believe in Judaism, but your parents have not convinced you to follow a fully halachic lifestyle.
It’s just an observation, but it seems to me that it would be fair for you to read books written to address your outlook. Any book by Rabbi Akiva Tatz comes to mind:
# Living Inspired (Targum Press, 1993)
# Worldmask (Targum Press, 1995)
# Letters to a Buddhist Jew (Targum Press, 2004)
# Anatomy of a Search (1987) – Autobiography on how Rabbi Tatz became a baal teshuva.
# The Thinking Jewish Teenager’s Guide to Life (1999)
There are other good books out there, too, that discuss mitzvah observance and that are inspirational and enlightening. Rabbi Aryeh Kaplan, a”h, is another example of a prolific and enlightening author. I hope other people on the forum here post their own suggestions for similar reading material. They may inspire you – how ’bout it?
P.S. There are also all sorts of shiurim online. Such as here: http://torahanytime.com/index.php?section=rabbis . You may find some relevant shiurim that cater to your interest.