Once you learn to overcome certain difficulties with this aspect, it has much promise for you. Self-doubt and free-floating anxiety are chief among its troublesome effects; since it's difficult for you to articulate your strengths, you fear you might not have any. You have a spiritual side, but your skeptical, empirical side interferes with your attempts at faith.
You must learn that not everything can be measured. You have a tendency to take on other peoples' burdens, but avoiding this will enhance your relationships. Do not let unfounded fears keep you from participating in social events or other activities, because once you learn how to set your boundaries firmly, assuming the responsibilities of others will no longer be a problem.