I'm 21 and a senior Chemical Engineering major. Graduating in May, which will hopefully give me the ability to have a further-reaching con schedule since I'll be living on my own time rather than around classes.
I cosplay pretty avidly, which is a little difficult to coordinate around school sometimes, but I use a lot of my breaks (Fall break, thanksgiving, Christmas, etc) to get things done at home where the majority of my sewing things are. But it's possible to work on cosplay at school. Just gotta be courteous to my roommates and clean up when I'm done.
College also helped me meet some new cosplay friends. My sorority Grandlittle is my current convention buddy