I assume you're in engineering based off your classes. I'm in the exact same situation with Calc 2 and Physics this Fall, I need 12 hours to keep a scholarship. I started a business minor this semester because I needed more hours and know that I'll keep running into this problem throughout the next few years, so I can just take my minor classes to fill hours.

I assume you'll have this problem for many more semesters so you might as well pick a minor and get started on it. I won't say it's a better use of time because it's defientely nice to take an easy class like yoga and not have extra stress (especially for engineering later on), but it's definetely a better use of money to work on a minor.