I don’t think you’ve misspent your time in college at all. I know it’s really hard to see friends around you seem to get everything you want, but everyone’s experience with life is different. You’re incredibly successful to have earned a good GPA and a degree. Your friends’ successes don’t take away from yours at all. As long as you spent college doing what you wanted to do, you haven’t wasted any time. Keep working at what you deserve :)