Playing sports in college and taking classes is a load. I played tennis for 2 weeks during my freshman year...I forced myself out of it because it takes its toll.
I had a class until 4. Practice from 5-8 pm. At that point, you are hungry and exhausted. By the time I got home, ate my dinner, showered, and relaxed for a bit, it was almost 10 pm. At that point, your muscles are so tired that all you want to do is lay down and watch tv. There isnt much room to get in good studying. You can try, but your brain does not comply. So, after sitting there for an hour trying to study bio and realizing nothing is going into your head, you think to yourself, I will call it a night early and take care of this tomorrow. Same thing the next day...too tired and drained. Its a tough process, and for those that can get their sports in and do well in classes, more power to them. I couldnt.
Im not saying that those who work necessarily have it easier. Its tough either way and Ive done both. Im just speaking from my experience. I could handle the job much better than I handled tennis. Becoming physically fatigued on top of everything else just makes it that much harder.