It is a normal thing for teens to question their faith. Almost every teenager I know goes through some doubts. It might be doubting God’s love or doubting that the Bible is the Word of God or doubting that Jesus rose from the dead.
The Bible is a very unique book, containing 66 smaller books, written by over 40 different authors.
This is not a lightweight course. It is heavily intellectual, but broken down into bite-size pieces that a teen or adult who wants to learn will understand and remember. I was totally impressed!