AMP Pages are not Showing up in Google Search Search

Question

I am am using Official AMP Plugin for my site. I can visit and see the AMP pages by typing https://techsaa.com/?amp or https://techsaa.com/ammp/. There is no validation problem in Google search console. If I check it in AMP validation test, it says not article structured data detected. But If I test it in "Rich Test Results", than everything is ok.

But When I inspect AMP version in Search console, it says the page is not available on Google .And if I test the AMP live version, Its available on Google without having any issues, error message etc.

Question No. 1: Why Google is not showing up AMP pages as indexed Question No. 2: Why AMP Page are not showing in Google search Results.

I have read a previous Thread "https://stackoverflow.com/questions/53274886/why-amp-page-isnt-showing-up-in-google-search-result" and found an answer:

<script type="application/ld+json">
{
  "@context": "http://schema.org",
  "@type": "Organization",
  "url": "http://www.example.com",
  "name": "Unlimited Ball Bearings Corp.",
  "contactPoint": {
    "@type": "ContactPoint",
    "telephone": "+1-401-555-1212",
    "contactType": "Customer service"
  }
}
</script>

Currently I am using Tagdiv Newspaper theme and the Yoast Plugin which have its own schema structure.

As I am not a highly technical person, I want to ask where to insert this code by site wide. Because the location was not mentioned in the answer. Please see my site if you need to inspect https://techsaa.com

Please see the attached images also.

Thanks in advance

I need help regarding my question and requesting the developers/team member to always mention the code location location. Stack overflow is a best platform for learning but sometimes People like me (Non technical) don't understand and find it useful.