What if Doing God's Work Causes Anxiety?

(A note:)

Being anxious (concerned?) about whether you will be willing and able to see your work for God come to completion is not clearly Mammon-worship, but maybe being excessively anxious (concerned?) about it is spiritually dangerous because you start to get worried, explicitly/officially or implicitly/subtextually/fiducially, that you are going to die of you don't do the work, in which case you may be failing to accurately understand God's love, believing a lie that keeps you from trusting him.