I am 18 years old. (From Bangladesh). My height is 161.5cm (63.5inches). Weight 70kg. BMI 27. How can I lose 10kg in 3 months?

Breast 38, Waist 31, Hip 42
Not a heavy eater, But I like fast food a lot. Love sugar (brownies, cookies, milkshake, milk tea, hot chocolate). Very tough for me to cut sugar completely.
My class 12 starts from August. I want to lose 10 kgs and come down to 60kg. I have 3 months (May, June, July)...

I am 18 years old. (From Bangladesh). My height is 161.5cm (63.5inches). Weight 70kg. BMI 27. How can I lose 10kg in 3 months?
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