My Website is not indexing in Google? What to Do?

My Domain 6 month old. all pages of website made using google algorithm still page was not indexing, I tried So many times in Google search console, But It's show URL in Google but my page was not indexing when i search my URl on google. Even i add Sitemap and Robots.txt. What i need to DO.. Tell me Suggestion..

Kindly please suggest me What to do.

Thanks in Advance