There are four types of fears: fear of loss, fear of failure, fear of rejection, and fear of the unknown. It is very likely that you are struggling with one or more of these fears. These fears can paralyze you and keep you from God's best. Remember what 2 Timothy 1 says in that God did not give us a spirit of fear, but a spirit of power, of love, and of self-discipline.
Which fears do you currently struggle with the most?