just ask her to marry you before someone else does and then you can see her all the time
No, and over time you two will grow apart.You will dream about her, longing for her, but life will take it's course. Eventually, you will start to lose memory of what she looked like, and the dreams will fade with the memories as well. Soon, her name will be just a chapter in a book long ago read and the characters forgotten. Just an insignificant page in a book you had long left in the past.
As you state your still at school, given time you'll treat this as a life experience and move on, a positive experience will mean you yourself wont do this to anyone