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This article was either supremely sarcastic or honest and really depressing.
If the latter, I recommend a quick and profound attitude adjustment!
First off, recognize that there is no going back, barring adoption. Also, recognize that the key to being a good parent is unselfishness. You are no longer the most important person in your life; accept it. Now.
Accept that career achievement should not be (and is not for many of us) as gratifying as being a good parent. Other than the money, the main point of careerism is more or less proving that you are good at something, and gaining the approval of others, right? You can do this via parenthood, too. And, trust me, feeling good about your parenting is much tougher than feeling good about your work, so those few fleeting moments when you actually feel like you are a good parent are absolutely and totally fulfilling. If fleeting.
And for Pete's sake, top calling your baby a lamprey. You are setting yourself up for failure.
If this article instead was just a sarcastic parody, I can assure you that those parents with an outlook similar to my own did not find it entertaining.
From a very imperfect but loving father of 3 (under 5).