Keith over To-Done has written a very nice article on confidence. He showed couple of tips on how to develop your self-confidence:

• Just Do It
• Recall past successes
• Positive thinking
• Remind what doesn’t kill me makes me stronger
• Take deep breaths
• Go through my “kudos” file
• Focus on one thing and take it slow
• Listen, think, then speak
• Remember that I’m not the only one who feels this way

Those are very effective ways on overcoming your lack of confidence.

Here is one more thing that I do to develop confidence – Repetitions. I used to struggle with public speaking and I was not totally comfortable to speak in front of people. I tried to overcome lack of confidence on presentation by finding opportunities to practice and practice until I am not afraid on it anymore. This is a very useful ways on gaining confidence over a task.

Confidence – [To-Done]