How can I lose weight quickly?

I am 5 feet 9 inches, and weigh 137 pounds. my goal is to weigh 110 pounds. I know this is stupid to ask, aso please be serious with me.
Update: *also
Update 2: oups, meant so... be serious with me
Update 3: I also do sports 2-3 times a week, and do yoga as a warm up for dance for 45 minutes 2-3 times, then continue with dance for about the same time.
Update 4: oh, I'm female btw forgot...
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