What shoud i do?

Yoyo,long time no write blog already,but my vernon juz suggested me to express my feeling in blog so i just follow his suggestion.Just hope that i could become better after writing these.During 26 May,i accidentally knew a girl and im sure that all of my friends know who is her..hah..and the process in the middle i think i no need write much.When i heard that she is leaving soon and i feel very down and sad.I suddenly realise that i should do something before it is too late and i dun want to regret for another time just like last year.But now,only left few months for me as last chance because i know i would never have a chance tell her once she leave Sekinchan.haiz..I dunno what she is thinking about and what should i do now?Who can tell me what's the next step..Or maybe,i should give up in the end...