Anxiety is a very crazy (in mind) thing. You must concour it to proceed.
I do agree.  I am lucky enough to have not suffered from it but my friends have.  They would feel nervous and have trouble sleeping. It is such an unpleasan state of inner turmoil. 
It is something that I suffered from, we must face our fears and deal with our pure emotion. Life is nothing but a simulation.
Anxiety
Anxiety is an emotion characterized by an unpleasant state of inner turmoil, often accompanied by nervous behaviour such as pacing back and forth, somatic complaints, and rumination. It is the subjectively unpleasant feelings of dread over anticipated events, such as the feeling of imminent death. 
Anxiety is a feeling of uneasiness and worry, usually generalized and unfocused as an overreaction to a situation that is only subjectively seen as menacing. It is often accompanied by muscular tension, restlessness, fatigue and problems in concentration. Anxiety can be
you a service; so you feel yourself bound to give me something which I am not to give to a neighbour, unless he has done something special for me. I have heard of this kind of thing; but pardon me for saying, that it seems to us a troublesome and roundabout custom; and we don't know how to manage it. And you see this ferrying and giving people casts about the water is my business, which I would do for anybody; so to take gifts in connection with it would