Why do I imagine myself skinny but can't achieve my imagination?

Anonymous
I'm 15 years old and weighs 240 pounds and is 5'7". I want to lose weight this summer and go through my glo up process. I hate the way I look now, I can't figure out why I don't care about appearance. Every time I keep telling myself I'm gonna do it, I become extremely lazy and goes on to start not caring on myself. I been big since the 3rd grade then I went to medium weight in 7th grade by starving myself in school. I moved in 8th grade then gained a lot of pounds out of nowhere. I was picked on in 9th grade and now I'm going to be a sophomore. I kept imagining myself becoming skinny and admirable to the girls, the more I kept thinking that the more I procrastinate and thinking I'm going to be skinny like magic. Now, I feel like I'm gaining more pounds than ever. I keep on bulking and that's it. I try stop eating but keep on getting more hungry. Nothing will satisfy my hunger for some reason. I told my mom to get a membership for the gym and she kept being cheap about it and say do sit ups and I told her that it wouldn't do that much effect on me and it will take longer. I want to become skinny by the start of school so I can wear style clohing that'll fit me. I can't even force myself to do cardio on an empty stomach. It's like my brain is telling me to go for it but my body is rejecting that command like it's rebelling.
Why do I imagine myself skinny but can't achieve my imagination?
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