Tammy Lynn,
A friend is a treasure and I am sorry for your loss and for her family who must also be in shock. My guess is that your friend will be very much present with you on this Camino as you think of past conversations with her or have experiences that you wish you could tell her about. Remember that as your departure time gets even closer, it is very, very "normal" to have doubts about your abilities/wisdom in beginning this journey. Just ride it out and get on the plane.
That said, once you arrive, there is no need to leave Pamplona until you feel ready to start walking. Give yourself a little time to get over 9 hours of jet lag and first time traveler fears. Take time to just savor being in Spain. Give your soul time to catch up with your body. Linger over a cup of coffee and watch pilgrims walking by and know that that is you, also. Take this journey one step at a time.
Buen Camino,
Nancy (from Oregon)