Start with a foundational BiggerPockets book (keep reading more), listen to the Real Estate Podcast, and read Blog posts.

Here is a good article with a full list of suggestions for rank improvement.https://neilpatel.com/blog/improve-google-rankings-without-getting-penalized/

Any blogs that I should be pointed to?

blogs on here, you tube, instagram etc. 

You can educate yourself through real estate investing books, listening to podcasts from notable investors who’s techniques match your interests, or read blogs posted under major finance blogs such as Forbes.Another way to educate yourself is to attend workshops that can offer hands-on knowledge.

I am still in the process of discovering my niche!

You could have thrown a bandaid on it and reglazed the tub at your desired cost only to discover that leak that caused the rotted floor would have resulted in the tub coming out next year. possible structure repair and maybe ceiling repair of the floor below with a new tub install and repair cost similar to what you are looking at now.

I will work on doing a blog in the future about this! 

If you look into the whole FIRE (financial independence, retire early) movement you'll see that a lot of those that do it end up starting some other business after they "retire" whether it's blogging, photography, or some other business that they enjoy but also provides additional income.

And, about the once...we discovered that the tenant actually liked "being in charge."