You are an organic whole. An anxiety is being created because you are trying to let go. It is not a question of trying - because trying itself will be the hindrance to moving into the space of let-go.
Let-go cannot be tried. It is simply an outcome of understanding - you simply understand something.
For example, you see that your house is on fire. Then, you don't consult the ENCYCLOPEDIA BRITANNICA for how to get out of the house when the house is on fire; you don't give even a single moment for thinking. You just rush from wherever you can find a space to get out of the house - you may have to jump out of the window.