I hate everything about me especially my body, what should I do?

I do everything to make me thinner, now Iโ€™m 5โ€™4 and 112 Ibs and everytime I looked in the mirror I see only me that full of belly fat and scar on my body, Iโ€™m insecure about it, what should I do?
I hate everything about me especially my body, what should I do?
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