Health diet tips to keep myself skinny and healthy?

I am 115lbs and I am 13. I was wondering if anyone had any health tips to keep myself healthy. I was looking into this diet where I would start with eating protein and gradually work my way into eating my fruits and vegetables. Does anyone know what this diet is called? (Please, No comments with additude.... show more I am 115lbs and I am 13. I was wondering if anyone had any health tips to keep myself healthy.

I was looking into this diet where I would start with eating protein and gradually work my way into eating my fruits and vegetables. Does anyone know what this diet is called?

(Please, No comments with additude. Any other comments will be appreciated. Thanks so much!)
Update: Also, I don't want to be on a diet plan (Such as Weight Watchers). Thanks!
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