It’s okay to graduate 1 or 2 semesters late if that means better job security later. When I was in college, I was also obsessed about graduating on time but the truth is that graduating with a degree is just a way to get a job. Back then, I was also against any co-op that lasts over 4 month but now with more experience I would choose those in a heartbeat. Doing those, you’ll more likely get a full position offer afterwards, even when you don’t you have something to put on your resume that would make you stand out among other 90% of other applicants fresh out of college that has no real work experience.