Building confidence comes with every successful endeavour you experience. As you take consistent and repetitive action your levels of confidence are sure to increase. It also helps to recall the feeling you experienced in the past when an important goal was successfully accomplished.
Conversely, past failures may have left a negative energy block in the form of a belief that may sabotage any new goals that you may set. This can be addressed using a process called Emotional Freedom Technique (EFT) along with reprogramming the subconscious mind with tailored digital recordings. These recordings are made for you as part of your coaching program and consist of positive affirmations, relaxing music and brainwave entrainment tracks.
The word confidence comes from the roots fidere, “to trust,” and con, “with.” Confidence, trust in oneself and one’s abilities, is the secret of success, and the experience of success is a key to building confidence.
Gelb, Michael J. (2009-10-21). How to Think Like Leonardo da Vinci: Seven Steps to Genius Every Day (Kindle Locations 1330-1332). Random House Publishing Group. Kindle Edition.
Permission To Make Mistakes
There is an old saying, "If at first you don't succeed, try and try again". How many times did Thomas Edison fail to invent a successful light bulb?
Thomas Edison's teachers said he was "too stupid to learn anything." He was fired from his first two jobs for being "non-productive." As an inventor, Edison made 1,000 unsuccessful attempts at inventing the light bulb. When a reporter asked, "How did it feel to fail 1,000 times?" Edison replied, "I didn’t fail 1,000 times. The light bulb was an invention with 1,000 steps."
Source and more quotes like this at But They Did Not Give Up.