Psychological Challenges 
Caregiving presents a myriad of psychological challenges for both the Caregiver and the person receiving care. Understanding that these challenges exist can help to a better understanding of how to deal with them. Some of the more common challenges are
Depression
Psychological
Challenges
Anxiety 
Confusion
Anger
Denial
Avoidance
Role Reversal
Here are some resources for you:
Magical Thinking and Aging Parents - by David Solie