Hey man. I'm working on some spreadsheets in one of my courses right now too, but I am still very new to it
I started making a spreadsheet in the summer that kept track of all the items I was flipping at the GE, and how much profit I was making per flip. It helped me log my profits and keep track of exactly how much I was spending and exactly on what. Except I had no format for it whatsoever, it was just info typed into random cells in rows lol. If you want some practice maybe you could help me/other people who like to flip develop a spreadsheet to help us keep track of our flips and profits?