Lycopene from soy? Are you sure about that?
Lycopene is generally found in tomatoes and watermelon. Cooked tomatoes yield the most absorbable amounts of lycopene and so, believe it or not, ketchup is an excellent source.
Brocolli also protects the prostate as well.
And, by the way, I think it's good you're trying to protect your prostate from day one, i.e. even at an early age. What I have been reading is that scientists think that prostate cancer comes from a cumulative effect of damage done over one's lifetime.
It usually takes decades of damage before cancer begins to break out, but obviously if you're really protecting your prostate from an early age, your odds of prostate cancer should greatly decrease.
I wish I had my head screwed on that straight when I was 18. I was eating pure crap at that age...