If you want the confidence to know that the tasks and activities that you're focusing your time and attention on at work are the right ones, watch this video for a simple model that you can apply to make sure you're having the impact you want.
I did it! I've got videos online. That beast has been blocking me for 12 months now, and it took a colleague's perspective to get over myself and just friggin do it! The key question I pose in this video is, 'What perspective do you need'?