First thing you need to know is that using Yoast will not boost your rankings. It is a plugin that just tells how good your on-page SEO is.

And sites are not ranked in a matter of days or weeks. Unless you are doing any black-hat stuff.

So, just keep focusing on creating better content, promote it crazily and wait to see the results. I recently started a website and I am taking it slow. I am utilizing time in creating better content and influencer outreach.

Moreover make sure that you submit your website to Google webmasters. I hope this article will help you avoid some mistakes.

Track your competitor's backlinks and see how they got backlinks. Do what they did to get backlinks. The last thing you need to know is DO NOT EVER try black-hat methods.

Here's a comprehensive guide on using SEO Yoast for your site. It's from the MOZ website blog and it's pretty comprehensive, it answers your questions as well as how to customize your site for indexing using the plugin. https://moz.com/blog/using-yoast-seo-for-wordpress

Goodluck.