In the interest of staying within the rules of the site, I'll just say that this is a clueless, offensive, harmful comment. No, you don't know more than a 125+ years of psychologists studying mental health disorders because you make decent money right now and feel ok.
I would like to provide a piece of anecdotal evidence: what he suggests actually worked for me best.
I truly hope it does but I have seen plenty of people use that strategy until something broke.
As I see it, you can either deal with a problem on your own terms or you can let it eventually deal with you on its terms.
Just another N=1 anecdote: It didn’t work for me when I was dealing with depression a few years ago.
I also lost a dear friend to suicide and he was very succesful and active on his field when it happened. Nobody saw it coming.
It's just not that simple.