You might find that the anxiety is fueled by internal dialogue that goes something like:

What might follow is you carrying out a mental dissection of your productivity systems, in a bid to see why an ambience of anxiety still permeates your being despite your best attempts to rid yourself of the feeling through intentional application of effort. And upon your study you find that your systems work as they should, revealing that the source of your unease resides elsewhere.

Trust.

You've probably heard you should trust yourself and it may have never occurred to you that trust in yourself is something might you lack. Because, of course you trust yourself.

But it can be useful to think of trust in yourself this way: Trusting yourself isn't something you do. It is something that emerges from what you do.

This distinction is important.

It redirects the inner-radar that seeks assurance, revealing that the path to distill self-assurance and equanimity can be found at levers you stir. 

One question you might have is: What if the trust does not emerge, from what you do?

This is where another remarkable concept must be invoked: Hope.

Hope (or the absence of it) is the default mode from which actions manifest. Whatever action you are doing is driven by some kind of hope. It has to be the fuel you rely on to stir actions and see which actions enhance trust and which diminish it. 

This is the ultimate response for how to navigate uncertainty: 

• On one extreme you have certainty, where trust is absolute and you move with unflappable conviction. 
• On the other, you have uncertainty where hope is the only resource available to you to traverse the unknown.

Productivity-related anxiety tends to arise from the tension between intentions and resolutions. With practical methods available to bridge the gap between the two, you can set aside well-meaning but hollow remarks like "Trust Yourself". For trust emerges not just from deciding to trust yourself but from devoting yourself to applying the actionable steps necessary to bridge intentions and resolutions.