Here is a simple trick to index your new blog post in 1 minute in Google:
Go to Google search console and go to your website panel. If you haven’t added your blog in search console. I recommend you to add it right now.
Go to crawl> Fetch as Google tool
Input the link of your new blog post without your blog address. For example, If the URL of the blog post is HTTP://www.example.com/example-post
Only input example-post in the box.
Click on fetch and click on request indexing.
A new pop-up appears asking you to prove are you a human ?
Verify the challenge and click on crawl only this URL and click on Go.
Within 1 minute your blog post will be indexed in Google. If you have any queries, ask me in the replies.