Aeon's sister site Psyche has – unsurprisingly – proven to be pretty great.
The article deals with what self control actually is (at least from some viewpoint) and how it can be conceptualized. And, I mean, who doesn't have self control problems sometimes? Some of us more than others, but at least personally I found the article actually pretty helpful in addition to being interesting.
Research in my own lab and others suggests that, if you want to improve your self-control, what you should do instead is focus on proactively reducing, rather than reactively overpowering temptation. Fortunately, there are several ways and opportunities to do this.