Love help please??!?!?

I am 14 in year seven and theres this girl. She's cute, she likes my jokes (im sortof a standup comedian) and shes always volunteering and shes a member of the SRC (student rep. council) for our school and i love her IMMENSLY. Oh god, you dont know how much i love her. I've loved her since year 3. And ive been trying for years, and know everytime i think of her, i get all teary. I dont want any sexual practices in later years, i just love her. ALOT. Please, please, please tell me how to impress her... aw... im getting teary :'(