Could you please tell me the best way to lighten parts of my body to my natural skin tone? (Photo)

I am an African American woman who has a natural caramel skin tone. I have noticed that my neck, arms, and back have darkened dramatically. I am very self-conscious about it. I would want to stay away from skin bleaching, but give me your honest opinion. I am normally covering these parts of my body. I want my confidence back. I want to show off my body as I did once. Please tell me if there is ANYWAY that I can get my confidence back. Thank you.

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