How to prevent wet dreams?

Hello, this is a little embarrassing as I am a man of Christ, but how can I prevent wet dreams? I refuse to "masturbate," and furthermore I don't know how that would help. I have a wet dream at least once a night. I'm going through puberty (I'm a minor), and I heard that this is just a natural part of growing up, but I have also heard that ejaculating too much can damage the prostate. Is that true?