I'm using Zorin, I need a safe way to practice in terminal so I don't make any happy little mistakes and brick my computer. Any help would be greatly appreciated.
I remember about some terminal learning programs in the software center. They usually come with a safe environment I think, but just check before you do if you choose to go that route. I have to check the one on my Surf'.
You could also create a Live USB of, say, Zorin, and conduct your experiments from there. Install Timeshift on there, have Timeshift storage set up on an external drive, and then you have yourself covered.