Should I just try and scrape by the course so I can dedicate more time to my projects? Or put them on hold and fully commit to university?
Figure out what the average GPA is for a graduating class. Hit that average or slightly above every semester. Once you know you have that average, spend the rest of your time on other pursuits.
For example, if the average is 3.1, then aim for 3.2, and don't give a crap about increasing your GPA to a 4.0. That's not that goal. Average/slightly above average is.