My apprenticeship is now official! To all the wizards out there, is there anything you wish you knew when you began your studies?

Hello to the planes, my name is Cayna (she/her), and I decided I'd introduce myself because I'm really excited that my apprenticeship is finally official!! Yay!!!

My master is one Melchiora The Malevolent, and she was kind enough to let me stay in her tower for the duration of my apprenticeship. (Some of the goblins offered to help me move my things in, but I had to turn them down because I lost most of my things when I was run out of town)

To get to the point, and to celebrate finally becoming an official apprentice, I wanted to ask if any of you had advice for a new apprentice. Is there anything you wish you knew or that you wish someone had told you when you first started?