strengths
I know myself. I know my strengths and I'm aware of my weaknesses. Aware is the key word. I don't focus on them or try to improve them. If you choose to focus on your weaknesses you'll improve them at the expense of your strengths. You'll be ok at your weaknesses and ok at your strengths. You are choosing to become mediocre. Instead hire or choose to work with people who are strong where you are weak. Concentrate on your strengths. That's where it's at. Focus on them. Improve them. Become amazing.
To find your strengths and weaknesses I recommend Strengths Finder 2.0.