Physically Disappointed.

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I know losing weight is about health, but I'd be lying if I didn't say I want to look more attractive as well. I have a goal to lose by next July, going to a big event and I want to look nice. However, I have this lingering feeling I can't do it/or I won't look nice anyway, that I'll still have confidence issues, especially if there is excess skin.

How do you overcome this? Does anyone have any words of encouragement or experiences?