Frustration! There seems to be so many things in life today that we can become frustrated over; kids, job, marriage, neighbor, bills, car trouble, and of course this whole COVID thing! But what is the underlining thing that is at the foundation of our frustration? I believe it is a matter of our faith! It comes down to what we believe about who God is, what He is doing or not doing, and where He is taking us!
When our frustration raises its ugly head we immediately focus on the circumstances we are dealing with or maybe not dealing with but rarely look at our relationship with Jesus Christ and how our faith in Who He is maybe wavering.
After the sin in the garden corrupted that relationship and spread to all men, God's word says that He subjected us to futility in hopes that we would escape that corruption and step into the freedom of the glory of being a child of God! Our frustration is when we revert back into that corruption by allowing our flesh to rule our efforts and work instead of by faith walking by the Spirit into a life of peace. 
Without faith, it is impossible to please Him but without Him, it is impossible to walk in faith! Frustration is attempting to live by faith without Him!