highschool ball countdown!!!!!!!

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I've got 7 weeks until my ball and I'm 22lbs from my goal weight :sad:
I wanted to be there by the 24th of June! I'm so annoyed with myself.
How come its got harder?? I've lost over 35lbs already! Now, I have no go. You know that energy to just do it. I so cant be bothered despite wanting it so badly!! What can I do?? Whats the quickest way to lose the most I can befor my ball (healthily course!) ?
I'm 18, female, 5'2, 136lbs - what calorie intake do you suggest? What foods?
Come on, take the time! I'm desperate! :ohwell:

:flowerforyou: thanks so so much!