I think i ruined my life

I met a person, i got influenced a lot by her, my infatuation evolved into love but it's one sided. She probably loves someone else. I isolated myself, i turned into a self pitying mess, i wasn't able to study because my thoughts were occupied by her and ruined my concentration. Nearly 10 days to exam, still not able to study. I simply can't focus. My head is heavy, my heart is heavier. I'm lost. I can't tell anyone. Not to her not to my parents no one i can confide in. I want to wind this mess up.

Edit: guys, i thank y'all for your kindness and support. But i think we should all go to sleep now, it's wayyyy past our bedtime.