Rank Math SEO Plugin

[SpaceFish]

Despite entering the SEO descriptions correctly in the Rank Math SEO plugin, it is not generating the desired meta descriptions. The issue I cannot resolve is that, although I have correctly entered meta descriptions by specifying key terms for each page's content in the Rank Math SEO plugin, they are all taking the same value. However, on other pages, it is directly pulling from the site content, which I don't understand. For example, for the swimming course, the description I wrote has been applied to all pages, which puzzles me because on other pages, it seems to ignore the description in the meta and pulls from the page's content. My second question is, why isn't www.arsissaspor.com being added, when I have added the other pages for indexing but Google is not adding the homepage.