@Bryce McBride You tend to focus on the down-side. While it is important to assess risks and be prepared for the inevitable problems here and there, the whole purpose of investing in real estate is due to the exceptional upside overall.
Aside from just learning about real estate, this is also a mindset issue. If you read or listen to mindset books like "Think and Grow Rich," "Rich Dad Poor Dad," "The One Thing," etc, you understand that you can do anything and get through anything.
That said, you can't be ignorant in your dealings. You must buy right, add value where you can, screen tenants thoroughly, and hold them to their lease. If you do these, you are likely to have many more positive experiences than negative ones. So your entire portfolio will be positive.
You may have a property here or there with negative returns. At that point, you need to determine whether it is just a sunk cost that you need to dump, or a place that just started poorly, but can still perform.
If you are one who will turn and run at the first sign of trouble, you may not want to invest--because then you will become the source of a great deal for another investor.