What is it that you are afraid of? I can remember, when I started in real estate, being so worried about what would happen if I got that listing or if that buyer wanted my help. Could I do the job that they relied on me to do?
In real estate, you, as their sales representative are dealing with their money in the sense of them buying and selling real estate. This can be scary for a real estate agent who is new to the business or if you are dealing with a high priced property that you are not used to.
Understand your fears and do everything you can to get rid of those roadblocks. Your prospects may feel your negative or fearful energy which could stop them from being willing to use your services.