YOU SAID:

my bestie is maya and she is the worst person ever and her birthday is in a week

INTO JAPANESE

私の親友はマヤで、彼女は史上最悪の人で、彼女の誕生日は1週間です

BACK INTO ENGLISH

My best friend is Maya, she's the worst person ever, and her birthday is a week

INTO JAPANESE

私の親友はマヤです、彼女は史上最悪の人です、そして彼女の誕生日は一週間です

BACK INTO ENGLISH

My best friend is Maya, she's the worst person ever, and her birthday is a week