I still meet with those friends on a yearly basis. But yeah, it's a major life lesson. It gives you drive. Knowing that you're in class from 8-4 nearly every day the first two years, then studying from 5-10 every night and 3 out of every 4 weekends while living on salami and chicken salad, shows character and resilience and a strong GI tract. 3rd yr is hell, but 4th yr was great.