Advice
One thing that I didn't do at that age and very much regret is to be really conscious of being healthy and physically fit.<p>That's the right time to learn what you should and shouldn't put in your body, and how to be constantly active. There's a million different ways to accomplish that but it's important to find one.<p>People at that age often don't really understand how closely linked physical fitness and mental health are. But if you ignore it there will be consequences.