How to embed content in a blog post from a google sheet?

I am creating a website to act as a 'Yelp' or 'Rate My Professor' for online fitness coaches. I have a form people can fill out to rate a coach they have worked with. 

Currently, this form emails me the submission and populates a google sheet. When a form is submitted, is there a way to automatically add the review to the page as content within the blog? For example, could I embed content from a google sheet? Or at least use the data to populate the ratings chart at the top of the page? 

Similarly, I have a page where individuals can submit a form to add a page for a coach. Is there a way to create a new blog post from a template when a form is submitted? Using the fields from the form submission?

I don't know of any way to create and publish a new blog based on a submission (probably a bad idea, you would undoubtedly want to vet information before publishing).

Adding a table based on the ratings and pushing that directly to your website can be achieved with this plugin:
https://www.squarewebsites.org/squarespace-plugins/custom-table-block
You could even set it up to update an average score as well.

Hope that helps!