Please check the suggestions above. You need to use the Stripe for WooCommerce method instead of WooCommerce Payments (WooPayments) and make sure that you don’t use the express account you set up for WooCommerce Payments previously.
I highly recommend hiring someone for assistance, while we provide software with a specific set of features and guarantee them by fixing bugs and providing general guidance, unfortunately we can’t create and set up a website for you (e.g. set up payments and other website-specific details), this is beyond the fixed-price license support scope and it’s something freelance developers do. For example, you can check the WordPress category on Fiverr https://fwd.cx/hLhc73mQCD9R
Hope this helps