Definition of Wac. : a member of a U.S. Army unit created for women during World War II and discontinued in the 1970s.
Your inner self is who you really are on the inside. To know your inner self is to know your purpose, your values, your visions, your motivations, your goals and your beliefs. Not as what you have been told by others, but what you have discovered for yourself.
As humorous as this might seem, it's a basic summation of the truth. Yet, you can't be yourself if you don't know, understand, and accept yourself first. It should be your primary goal to find this out. Find the time to learn upon what you value and take time to consider what makes up the essence of who you are. As part of this, contemplate your life and choices.