How can I stop from being embarrassed for not having a 4.0 in college?

Remember this: only 71% or so of people finish high school, only 63% or so go to college, and only like 20% actually finish college. So you could graduate with a 2.0 and still have done something that 80% of the population didn't do. And realize that most people get Cs. You're holding yourself to an almost impossible standard which is good to motivate yourself through college, but once you finish no one gives half a crap about your GPA unless you're applying to more school.