How cab I lose this body fat?

I'm 15 year old and I weigh 234 and 5'7". I'm surprised I don't even look 234. I'm tired of walking around being big. I did try working out for 6 months and I lost about 20 pounds. My goal is around 140-170. Is there any tips I can have to lose this body fat?
How cab I lose this body fat?
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