Which Treatment is Good for General Body Skin?

Hi,(first of all excuse my english) i'm 21 years old, and i have a lot of scars and big birth spots all over my body, also different skin colors, for example my arms are 3 or 4 tone more lighter than my belly, my back and my chest are more lighter than my legs and my neck, i mean is a disaster, i look like a map i don't even know how to describe it.

I still have the same scars from when i was only 9 years old..my skin is very sensitive. What can help me, and which would the price?..Thank you

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