He's not as charming as you think. You don't need him, and don't let him convince you that you do in a moment of weakness.

 Stay single and independent, the girls you have run around with will end up tearing you down. You will be happier in the end, and don't worry the right girl will show up.

 Don't worry so much about what people think of you especially to the point where it keeps you up at night.

 Don't have sex with him. You were both drunk and he had a girlfriend. Wait for a guy that isn't a douche.

 Friends with Benefits is not fun. The sex is never as good as it seems on movies. Wait for love.

 Let him know exactly how much he means to you. You won't find another guy like this for a long, long time.

 Don't be afraid of who you are. What others think of you doesn't matter at all; Are you happy in this moment? Embrace life, feel it, live it and you will never regret a moment that you did.

 Don't go to University, I don't care how passionate you are about English - it will be useless. Get a business degree at the local Community College, and realize that you are so much smarter for doing so.