improving on the intangibles

[lmw]

Does anyone have any tips for improving one's discipline and concentration? I have been playing and studying to improve my game for a little over a year now, and feel like i have a pretty good grasp of the basic winning principles of SSNL. Recently, I have noticed a disturbing trend, where i have made plays I knew where incorrect. I'm sure there are several posters here that have dealt with or are dealing with similar discpline issues. I am hoping some of the more experienced players in this forum will be kind enough to offer some insight into what helped them improve their discipline as they moved up through the SSNL levels.