A whole lot of anxiety and confusion as to what I wanted and liked. A few interviews later this was then calmed down by the realisation that most interviews are the same and that you in time learn what you're supposed to want and like in the industry.

PS. Not really, but I learned what things are desired by employers and what skills are really required in the real world. These things are sometimes hard to grasp for CS students and graduates. It's like when one was in gymnasiet (Swedish highschool, I guess) and would have needed a few lectures in normal grown-up stuff like paying taxes, etc. DS.