The concept of Improvised living means that due to mental health issue, or any other issues you are not living your life, you are rather perpetually stuck in a survival mode, just trying to live. Not being true to your self, reflecting the way other people live, repeating patterns that are destructive. It is when you look like you have it together, but are actually falling apart. Improvising a life, rather than actually living one. Nobody knows exactly how to live, but there are some of us who are just reacting to things that happen rather than trying to make some if them happen.