Screen your tenants well.

Also, any best practices for room rentals that you recommend for screening and keeping tenants.

Move on and try to screen better next time.

I ended taking over the listing and screening tenants on my own through Zillow.

If you screen your tenants well you'll rarely even need to know any of this.

You're gonna look like even more of a fool when I post the screen shots to the contrary. 

To answer the title of your post, selling fsbo can be a good idea if:- you have experience selling RE- you price the home to sell- you have systems in place to collect inquiries and facilitate showings i.e. call center/email/google forms for screening inquiries, showing agent, lockbox, security alarm, etc. - you have dozens of local agents who can market the property for you and bring you a buyer- you are listing in a desirable area with low-inventory - you are not in a rush to sell

I screen animals and then assign a score to determine how much to charge.

You have to know your areas well and understand how to screen.

Also, I'd lease out the other bedrooms for additional income as well as practice screening, leasing, and interpersonal comms.