I love her , what should i do ?

So basically there's a girl in my school that i like from the beginning . I heard that she likes me too about 3-4 months ago but i didnt really do anything .. i don't know if she still likes me though .. but i do .. Today she came upto me in the corridor and said - Hey :) , can i talk to you ? , i was like - hey :) yeh sure :) , she took me to a corner without anybody around it and told me - sooo i heard from some people that you like me . I was silent for a few seconds then i was like who told you ? she was like some people . I was like who ? then she was like well i'm not really the type of person or like i'm not really your type or something . i was like haha :) smiled and said - i dont like you :) i like someone else . then she just walked away . For the rest of day i cried in my lessons .. i felt sooo bad telling her that i dnt like her .. :( it really hurt me :( anyway .. soo now i wanna go out with her .. I love her to bits .. i cut a heart in my hand , i still feel hurt :( i f ing love her :( what should i do ?