Well, the article makes it look like striving for accomplishment necessarily makes you miserable, and makes the comparison to alcoholism. If so, it's a very deeply buried, unconscious misery: alcoholics wake up and go to sleep feeling horrible and will tell you out loud that they're miserable whenever they're sober and wish that they could stop feeling so awful. Pursuing excellence doesn't (in and of itself) ravage your body or destroy your sleep.
I'm fascinated by computers, and I like to spend time learning more about them. This doesn't make me miserable, it makes me happy (and, lucky for me, I can turn this into money too). It does make the people around me uncomfortable: they figure that if they were reading a book about programming computers, they would be miserable, so they try to talk me out of "punishing" myself.
Corollary to this, though: you can (with a lot of caveats) choose to be happy. Or, at least, commit to finding and pursuing the path(s) that will get you closer.
It can (and does) take a lot more work than sitting in the familiar rut of misery. Sometimes, this involves doctors and pharmaceuticals, but, either way, requires a lot of work on the part of the individual.
The process of starting this work when you are already overwhelmed is a big problem. Try to rig the game in your favor and be realistic about whether you can benefit from outside help.
I'm fascinated by computers, and I like to spend time learning more about them. This doesn't make me miserable, it makes me happy (and, lucky for me, I can turn this into money too). It does make the people around me uncomfortable: they figure that if they were reading a book about programming computers, they would be miserable, so they try to talk me out of "punishing" myself.