If I could go back to Freshmen year, I don’t know if I would actually change that much. All the decisions I made helped me get to where I am now. If I would do anything I would go to class more often and study a little harder. Sleeping in is not worth bad grades!
The most important thing is to think about what your decisions could do to your future. This is not high school. No one is going to clean up after you besides yourself.
No one puts it better than How Do I Put this Gently?