These are just random thoughts:
First and foremost do not let this crazy society that we live in define you. Be your own person and take control over your life.
Before you act on those impulses, think about what you're doing and who you're doing it with!!! Take your time and get to know your love interest before you dive into a serious/long-term relationship. If it is meant to be, then it will be. The divorce rate has significantly increased and there are a large number of marriages that don't make it past the newlywed stage. Just remember, look deep before you leap; it will save you a lot of heartache.
Cherish your true friends. They are few and far in between these days.
Never give up on your dreams. No matter how far away they seem and regardless of your age. Dreams give us that extra push to that next opportunity. Dreams make us think outside of the box. Dreams breathe life into us.