The problem I run into is a matter of needing a header on the left-side navigation for an organizing title but I don't want it to actually link anywhere. Is there a way I can do this?
The best way to do this is going into Site Settings -> Navigation.
Scroll down to the Structural Navigation: Editing and Sorting section of the page.
Here select "Add Heading..." create the title you desire and just put nothing in the URL section - sometimes SharePoint would automatically insert the Default site page's URL and this is why this problem came about.
After that click OK on the pop-up and then OK to save your Navigation changes.