Psychology of Chess Weaknesses
The path to chess improvement lies in finding your weakest area of knowledge and placing all of your effort into converting it into a strength. My greatest weakness is an apprehension, bordering on fear, of delving into deep calculations and analysis. This analytical deficiency affects both my combinational and analysis in over the board play , and unless I work to improve these skills, any future chess improvement will be difficult. You tend to avoid or procrastinate working on your weakest area and this is part of the reason why you lack proficiency, since you do not exert the necessary effort in mastering the material that gives you trouble.
NOTE: I will be posting my training modifications based on the article above in the next few days.