Better timing than many of us faced (i.e. running headfirst into challenge in college for the first time.)

Maybe help him approach it as another learning exercise. I found this site and book reference, might be useful for him to read:
"Study Strategies for Accelerated Learners"
http://www.galileoeducation.org/Recommended-Books.html

There are also all of the competitive venues to consider as they are more "sky is the limit." Odyssey of the Mind, Math League, spelling bee, etc. Odds are some of the prep in those is in learning methodologies.

I'm a fan of teaching metacognitive and metalearning concepts to kids.