The following texts apply Buddhism and mindfulness (among other ideas) to the self:

Baggini, J. (2011). The ego trick: What does it mean to be you. London: Granta.

Batchelor, M. (2007). Let go: A Buddhist guide to breaking free of habits.  Boston, MA: Wisdom Publications.

Chödrön, P. (1994). Start where you are: How to accept yourself and others.London: HarperCollins.

Loy, D. R. (2010). The world is made of stories. Boston, MA: Wisdom Publications.