Control What Facebook Shows When You Share Your Link
The Yoast SEO plugin is a good tool for a novice at search engine optimization to improve their websites searchability and google ranking. The Yoast SEO plugin also allows you to control what your google search result entry and facebook shared link webpage preview will look like.
Notes on the operation of FaceBook
Facebook only scrapes a page when you initially place a link in it. If you change a webpage you need to trigger a rescrape. Using Yoast SEO you can override everything for Facebook sharing.
One bad point about this plugin is that it seems to be coercing you to give up your login credentials for your google search console which is likely your gmail credentials also. I have been trying to do the manual method by retrieving the google secret code but keep getting a problem flagged when I enter the validation code.