Back To My Teens (Timetravel Story)

So I'm that dumb spoiled cheerleader girl you see in every teenage high school movie. The antagonist. The airhead. The girl we all know won't have a bright future, and who probably won't have a job ten years after high school... Well bingo! You guessed right!

But what if a very drunk me one day saves an old lady and dies in the process?
And what if I (instead of dying) return to when I was 16 years old?

It is time to change the past... and not just my own.