help for page removed accidentally

I changed something on my website about a week ago, but l deleted a whole page accidentally and couldn’t find a way to undo it.

My website is The link l deleted is called My Service & Fees, it was a link showed between the “About Me” and “Contact Me” on the home page.

l’m so stressful, so could you please tell me about how l can move the page back? Thank you very much.

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