I loved the understanding nature of my supervisors, the drive of all fellow coworkers, and the fact that my projects were broad enough that I had to harness many skills, tools, and tactics to tackle them.
What I wish was different
I wish there were more training sessions throughout the summer.
Advice
Learn to love learning. Always ask yourself "how can this be done effectively?" or "how can I simplify the process?" Always search for new tools that make your life easier, whether that's a new Excel function or a new coding language.