I think living a life behind masks is extremely common for active addicts. Its what we do. I'm pretty sure I learned this in childhood because being 'genuine' was completely alien in my family. To get 'attention' I had to 'be' what I thought my parents/family/school/friends wanted me to be. This may have worked in childhood but it did not work in adulthood. The only one I was fooling or hiding from was me.
I love this quote from David Stewart "Few people realize that sobriety is an action of insights and skills far beyond mere abstinence. Sobriety is a creative discipline in the art of freedom of growth, and of love. To be yourself is to become yourself". Notice the words action, discipline, freedom, growth and love. Pretty much the key elements of recovery. I would add willingness.