My mental well being is fine, and yours should be too. We root for the same time, but have differing views on this hire. And that's OK.
The AFC North was a terrible division, but 1 team had to win it. Arthur Smith was the OC of the team that won. Nothing about that is misleading, it is a fact. Of course the team won it as a whole, we all know that. You're trying to be petty and act like I'm meaning he won it on his own. Of course he didn't, but he led the offense which scored points, which led them to winning the division, again another fact. You keep ignoring the fact that the teams he had were not very talented(he also doesn't use TEs as much as you say, though he under utilized Bijan), and were quite limited, idk what else to tell you and I'm sorry if that doesn't help your well being.
Everyone has an opinion of a hire until the games are played, and the truth is shown. OSU fans questioned: Hartline, Day, LJsr, and Kelly to name a few, but yet those same fans loved the Coombs hire for DC. We literally will not know a thing until games are played.
I'm not sure what you're looking for me to tell you. I refuse to spend an off season complaining about the hire, as opposed to seeing the positives in it. There are countless other teams who would love to be in our fan position. I have buddies who are fans of FSU, Purdue, Texas, South Carolina, UVA, VA Tech, NC State, etc and all would love to be in our position, and Smith would be considered a steal to them.