I adored the book Quantitative Value but it might be a bit technical and isn't so much about controlling yourself as implementing a strategy and learning to stick to it.
Also enjoyed Daniel Kahnemann's Thinking Fast and Slow
I see a few others along that line that got good reviews: The Little Book of Behavioral Investing: How Not to be Your Own Worst Enemy (James Montier) - I like the Little Books series for less technical writing or an introduction to an investing area.
Behavioral Investing: A Practitioners Guide to Applying Behavioral Investing (James Montier)
The Emotionally Intelligent Investor: How self awareness, empathy and intuition drive performance