I am incredibly lucky to have been promoted recently. There was a rocky start that really messed with my head. Now, I have an amazing manager but am failing to get a handle on my confidence. My manager, and the other person at my level are both really supportive. However recently we got a few bad results and we need to "do better". I have learned my lesson from these results and am determined to do this. My boss says she knows my confidence is an issue and will support me but I need to get a handle on my flapping sooner rather than later, and fast.
How do I overcome this lack of confidence? Any tips? I really want to change.