Any regrets before joining IB FT?

As my college years are coming to end soon and FT at an IB seems like my life going forward for the next few years, I want to make the most out of my little time left in college. I was curious if some experienced bankers have any regrets about not doing more before starting FT. Whether that be spending more time with friends, studying less, playing sports, partying or whatever the case may be. I have this feeling that I might be wasting away my time in college by taking things like my studies and career too seriously or maybe I'm wrong and that's what I'm supposed to be doing because the payoff will be rewarding. If there is the perfect balance, what is it? Just curious of some of the experienced folks have some input on some things they would do differently looking back.(Don't mean for this to be depressing post, just trying to gauge thoughts)