Sure, that's right, but I mainly lean on the moral definition of the word professional. Think of things like not just quitting projects out of nowhere and wasting each other's time because of it.
I phrased things a bit rustily here and there, mainly because I'm not a native speaker.
By "control freak," I am, again, referring to the planning and the moral side of being a control freak. Although that creates a strange contrast, of course, I (again) just mean clear communication and expectations from one another.
I'm also not aiming for a real professional; for me, it's a hobby project too, for sure. But I always want to go for it 100%, not cut it short halfway through.
I hope I've made my point clear; maybe I should edit my post afterwards if this turns out to be a recurring thing.
On second thought, I am highly likely going to edit my post. Thanks for the feedback, by the way!