Continue writing the next sentence in this paragraph:

How to tell your parents you are following a religion they don't approve of
Study to be sure you are secure in your religious preferences.
If you have lingering doubts about your own faith, it may be best to tell your parents after you feel comfortable and confident about your beliefs.
Use the waiting time to do your research.
Examine many sources, not only " faith promoting " ones related to the religion you are investigating. Start a journal to keep notes in regarding your spirituality.