When we choose to respond to a situation or person we are choosing to allow our spirit to speak for us and through us, this does not mean that you are just saying yes or speaking softly when you respond with love you are responding with the only true power that can actually do anything. A response is not about quick-wittedness but instead about you deliberately choosing words that state your point.
When we choose to react to a situation or person we are choosing to allow our ego whose only point of reference for anything is the past to meet the situation. When we allow this we are going to be in haste we are going to miss things because we are just trying to get it done. Ego will never get you what you want it may get you a small reprieve but never really resolve the situation it totality.
Spirit is not telling you that you can't feel fear instead it is asking you when the fear comes to choose to respond to it with spirit to resolve it you can be shaking however as long as you are speaking with and from love you will be heard and acknowledged