[DO NOT MOVE, I WANT THE SOLUTION SOLVED HERE AND POPULAR!]

Hey all!
Time to get straight to my point!
I have loved and adored my female friend for three years! Since I first layed my eyes on her I have felt very affectionate to her! For our three years as friends we have shared our numbers! Time to go into 1 year in the past: We first became friends after a conversation we had started when we were alone in a classroom sitting close to each other! At the end of that year we parted due to the holidays and re met in the year 2011! Then into 2012 still friends and she's gotten flirty with me! She has lost her friends as her friends keep avoiding her leaving her on her own! I however approach her like constantly and talk for a half an hour with her! (I too have lost my friends and some friend's feel less friendly towards me) So, this week she has stated me as her "Best Friend!" I feel over excited to this statement! Whenever I walk in any class we're both in she says "Hi [My name]" (In a flirty way) She waves at me in her car when I pass it, then suddenly I've figured clues! Now here is where it gets questioning:
It is known that she loved me last year due to her responding quietly to my classmate giving confirmation that she loved me and I hearing it on that occasion! But I never made a move then as she said "lov*ed*" (loved), not love! Then a less-educated classmate who walked with her and I said "[Her name] you said you loved [My name]!" IN FRONT OF ME AND HER! She then responded to me personally "He must be on something" (Then a giggle and smile) I then replied to her with a giggle as well!
Now I need to know your opinion on my love story, how to tell her I love her, where and when to tell her I love her, what to do before I confess (e.g How to Know MORE Confirmation that she Loves me)
I never meet her outside of school, so finding a place to express my feelings is hard! We train in Irish Football across the field from our school and that's the only time we are not inside the school grounds! Ok, even with the above questions please even type out a speech to tell her whenever, wherever!

Thank you
[DO NOT MOVE, I WANT THE SOLUTION SOLVED HERE AND POPULAR!]