I pretty much always took 12-15 credits. My school was on semesters and I just went year round whereas most people took summer offer. Summer credits were cheape

I pretty much always took 12-15 credits. My school was on semesters and I just went year round whereas most people took summer offer. Summer credits were cheaper and you could cram in a bunch of general ed stuff that didn't need a ton of study. My engineering classes all preached 4 hours of study for every hour of class- I don't think I averaged two for most classes and graduated above a 3.2 GPA. Except EE courses and physics. I had to buckle down for those.