Dear Harrison,  

I am afraid you are asking me something that only your spiritual director in the seminary or some other priest that knows you well will be able to answer. You see, you are asking not about general principles, but how they apply to you, and not knowing you I am hard pressed to give an answer.  

What should you bring up with your spiritual director? Well, the knowledge of yourself that you have gained in these years in the seminary - your strengths and weaknesses, your growth in prayer, your life of faith, your motivations to become a priest, your sense of responsibility, your character and strength of will, your attachments.... Then go over your fears with him - what it is precisely that scares you about the priesthood, why you doubt you have a vocation.... Also take into account the needs of souls, what you want to do for Christ in your life, what you are willing to sacrifice for him. 

I hope these suggestions help.