Have confidence in your abilities and who you are as a person. This is a lot easier said than done, as I still struggle with this insecurity myself. As cliché as it may sound, know your strengths and weaknesses. Exploit your strengths and improve on your weaknesses.
I'll begin where the majority of successful entrepreneurs begin--"follow your passion." It may be a shopworn phrase, but this advice is as valid today for how to succeed in business as it was a hundred years ago, and it has certainly proven true for me.
No matter your rung on the corporate ladder, many people, especially women, engage in some sort of career self-sabotage, from small insidious mistakes to fireworks that can dominate water cooler conversation for weeks.
The business world is full of rules. Some succeed by following them, others by breaking them. You have to find the right balance. If you break all the rules, you may frighten people. But if make your own rules, they may not even notice.
Learning is a life-long process, and it is never a simple journey from A to B to C -- it's a zigzag journey, and often requires several false starts. Indeed, making mistakes -- and learning from them -- is crucial for our sense of growth.
As you contemplate making a change, I invite you to find one or more people who will wholeheartedly be on your side. Then tell them what you are up to, and ask (out loud!) if they will help you through any rough spots.
Effort is really the key component of the cycle of success, because even if you are inspired, motivated, or determined, you will not succeed if you don't put in the effort. Effort is the last step of the cycle before accomplishment.