For me, this issue of approval is part of the IC personality. Worry for me is often tied to how I think other people see me. This is a nice article, and has a suggestion for using the Sedona Method to help if you feel you have this paticular addiction. The trick with Sedona is to do it often, whenever the anxiety comes up for you about how others see you, so that giving yourself love becomes more automatic. 

http://www.huffingtonpost.com/hale-dwoskin/how-to-break-free-of-your_b_6...