I need a makeover!!!

I am newly broken up with my first partner. I am 22 years old. I work full time, while trying to get back in college to finish up 2 math courses to receive my A.A in Comm. Studies!!

I want to re-invent and give myself a new look and feel without over doing it. I want to feel sexy yet still remain the same reserved, modest-dressed female that I am. maybe a new hair style??

So ladies any tips or advice for me? I don't have much friends to go out with for activities. so much will be on my own :)