Help Needed regarding schema

Hello, I need your hp on my site schema issue, I write my own json code for my site schema and I include faq, review and how to in the block, so after doing this I found out that the review rating for each article cannot be specify in a box area like when using the rank math product schema where we can be able to add rating number, and if I want to do this I will have to edit the code everytime on every post which I don’t want, I want the text area like that of the rank math product schema template text area so let me know which codeoe what to do or add it to the schema so I can add d json back to my site and tell me how to.
Secondly, schema ask for reviews from many people in order to be able to use the review rating schema accurately without getting issue with Google now or later like that of versus.com, I know versus is not a WordPress site but I want u to tell me the rating plugin I can use along with the review schema I created to be adding the review numbers automatically because u know people keep reviewing everytime and it’s difficult for me to be going back to every post everyday to add one or two more reviews everytime.