Have you noticed how confidence can be contagious? When you, as a leader, have confidence in your ability to succeed, it also instills confidence in your team.
Great change agents typically identify the need for change, cast a compelling vision that allows them to bring their teams/organizations to agreement about the need for change, communicate the change effectively, and implement a strategy for the change.
What change is needed in your team or organization?
Do you have the confidence you need to cast the vision and bring your team to the same place — understanding the need for change?
Do you have the capability and capacity to bring about the needed change?
If not, what are you missing? What would allow you to be more confident in moving forward.