People use STRs for small vacations/ parties/ random travel just as much as massively planned vacations. 

I keep hearing about the rent to retirement company so I watched their online video.

People don't want to visit random neighborhood of Nashville, TN (unless they are trying to stay next to family). 

If you're having someone view the property for you, have them take videos and photos of the entire property.LTR vs Airbnb - run the numbers and compare the pros and cons of both.

I’m sure you’re well intentioned - and want to learn the real estate industry while earning some money.That being said, I’m going to provide you with some hard facts; “wholesaling” is NOT anything like what is described in YouTube videos, guru seminars, or lead on to $40k mentorship programs.  

Also, if you know anywhere, book or video where I can learn to do due diligence and the other things you mentioned, please let me know.

Watch videos on YouTube and maybe try to refrain from "should I?"

They have a lot of good videos on Youtube. 

Find Brandon's videos on YouTube for the "four square" method of analyzing homes and practice.

If you need help there I can shoot you a quick video on how to do so, our original CRM InvestorFuse was on top of Podio.REsimpli I imagine would have a certain format that they can import your data with.