How to get payment success message with my database while am using paypal

Hi Geeks,

This is our website : https://royavrahams.wixsite.com/royfitness/shop

And My requirement is :
Need to take the data once payment is done.
So that, I can show / hide the Some elements, Based on user mail id in that particular user.
Am Using paypal , Am not sure how i can get those details how you are already taking for wix-pay

Can anyone help out please ?
Please correct me or ask me more if i did not clarified correctly

Thanks