Have you read the pages about dynamic pages from Wix?
https://support.wix.com/en/article/adding-and-setting-up-a-dynamic-item-page
https://support.wix.com/en/article/creating-an-index-page-for-your-dynamic-pages
https://support.wix.com/en/article/adding-and-setting-up-a-dynamic-category-page