What is wrong with my skin? The texture is bumpy and thick. (photo)

I am 51 year old female and had good skin when I was younger, no acne or skin problems. My skin now looks horrible and I exfoliate and always take off my makeup and moisturise. I don't drink alcohol but my eating habit aren't great. I try to keep my face out of the sun. I would appreciate your advise thanks Alicia

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