What If you could go back in time and give your younger self guidance?

I've read several blogs where people drafted letters that they would have sent to their younger selves and thought it a worthy endeavor. If I could give advice to my 17-year-old self, below is what I would say.

What would you tell yourself if you could?

1. Don't say "I love you" unless you really mean it. When you do mean it, say it often 2. Listen carefully to that little voice in your head. It's a lot smarter than you are 3. Appreciate your family and don't take them for granted. You don't realize how good you have it 4. At 17, you are an idiot when it comes to life. That's okay though, just know you aren't nearly as smart as you think you are 5. Don't listen to what your penis wants. It doesn't want what's best for you 6. Supporting number 5...don't be stupid, use a condom 7. What's easiest isn't always best 8. Quit being shy. Do whatever you have to do to break out of it. You are missing too many good things by sitting on the sidelines 9. Complimenting others does not diminish you. Give credit where it's due and be generous with your praise of others 10. God blessed you in many ways. Use these blessings in His honor and don't take them for granted 11. Don't let up on exercising as you get older. You will regret it 12. Your son will be the greatest blessing ever bestowed on you 13. Find someone smarter than you to marry. Trust me, it's important 14. Don't let anger or rage consume you. You have more important things to do with your time 15. And finally I would tell you to learn from your mistakes. Each one presents you an opportunity to become a better person