Motivation.

If you don't have the motivation you'll never be able to do it. If you can't sit in front of a computer for 8 hours a day reading documentation and hunting for syntax errors you're not going to be able to do it. If re-writing algorithms doesn't give you an intrinsic satisfaction, you're not going to be able to do it. No amount of everybody can code tutorials is going to help. They should all be, "how to find the motivation to keep coding" tutorials.

Unrelated, but related to the article, the word sociopath get's misused a lot and this article is no exception. http://www.thefreedictionary.com/sociopath