Find a solid training regimen and spend your extra time learning about nutrition. This will go VERY far for you.
When I started learning about macronutrients, what they were, how they work in the body, etc., I made so much more progress.
It's incredible what you can do when you actually learn about this stuff. And if you're in college, by any chance (looking at your age), take a nutrition science course if you can. I loved mine.