The first step is to discern whether you the vocation to Cloistered Carmelite life. This involves three activities: Reflection, Prayer and Time.
Reflection is the human effort to consider the positive values as well as to foresee the difficulties in a cloistered life like silence, long hours of prayer, ascetical practices etc.
Prayer is to implore God’s grace to enlighten your mind to make a right decision and to find out His plan for you.
Time is to help you to make a mature decision, and not to be carried away by impulsive feelings.