They told us so much bullshit when we were teenagers.
"These are the best years of your life." WTF? Who made this up, and what kind of hellish life were they living? And why do grownups keep repeating this when everyone knows it isn't true?

"Schools and employers are looking for extracurricular activities on your resume, so you'd better have at least one athletic, at least one non-athletic, and at least one outside." Scholarship recruiters are certainly looking for this as a way to distinguish among the most excellent, but for the rest of the world it doesn't matter one iota. Do what is fun or interesting to you.

"You have to decide on your career path NOW! The decisions you make now will last the rest of your life!" Um, no! So you take the wrong courses? No problem, take a couple of intro courses as electives in post-secondary and then switch your major. You don't get into university? No problem, work a couple of years, take adult education courses at your local college, and apply for university once you've reached mature student age.

The truth that they never told us is that nothing that happens in high school matters. Instead of all this bullshit, they should tell you at the end of grade 5 "Kids, the next 5-10 years of your life are going to range from confusing and frustrating to utter hell. Some of your classmates are going to turn into people you don't recognize, you're going to find yourselves saddled with the body of an adult, the rights of a child, and people constantly trying to push adult responsibilities on you without adult privileges. So take it easy, do your best, have fun when you can, ask for help when you need it, and spend some time alone in a dark room crying when you need to. Then one day you'll turn 20, and nothing that happens between now and then will matter any more."