One of my problems is that when I rent it the people move there furniture and stuff in and the property ends up looking worse because of the furniture and clutter.

i think that's 3 more than a lot of people make before they get frustrated and stop.so keep going.

I tell people that real estate investing with me is more like a disease than an occupation.

That translates to a NET LOSS for your 8 unit property, just because 2 people couldn't pay, or the unit sat empty, etc.  

They grew fast, and like people mentioned clients became a number.

I love helping people and truly do enjoy my job, but I am already at a young age topped out for compensation and in this field with insurance reimbursement structure the way it is, I am likely to not move up much at all in the future unfortunately.I have always loved personal finance and after accruing ungodly amounts of student loans and navigating paying them off all while efficiently investing in the stock market as well as now real estate I have not only realized how strong my interests are in this area but also my personal skills align in financial planning and personal finance.

The facebook communities are great for finding people experienced in your local market . in the search bar would just search the words real estate and your city/state 

Does anyone know if it's possible to clear your rental history and hid how many people have viewed/contacted/filled out applications on Zillow? 

You need to enable payments online, the default setting is that people can check into your property without having to pay. 

In my view, the only reported behavior that could lead to your action is the driving too fast if it rises to the level of a lease or law violation, but you should investigate to get facts that could prove the allegation before taking any corrective action against that tenant.