Any looking to lose 60 pounds?

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Hey guys, I'm 21 years old, 5'8, and currently at my heaviest weight, 226 pounds. At this time last year I was 160. I don't know what happened. I am so desperate to lose the weight but it is hard. I've become depressed because I have new stretchmarks on my tummy and I'm worried the skin won't tighten when I lose the weight. I need some basic tips on how to start. I would like to lose 60 pounds by July 1st . I also can't get to a gym