"It takes a lot of courage to release the familiar and seemingly secure, to embrace the new." Alan Cohen

Releasing the familiar and embracing the new is what transformation is all about.  It's how we discover what works for us and what doesn't.  It's how we grow into our true selves
We often get stuck going nowhere--in relationships, career choices, etc.--because we simply lack the courage to strike out for what we really want: the sense of aliveness and purpose that comes when we know we're doing the right and perfect thing ourselves.
It requires a degree of self trust as well as courage to "release the familiar". We've often grown relatively comfortable with what we've got, no matter that it no longer satisfies us.  We've also been convinced since childhood by our parents, friends, teachers, and co-workers that it's better to be safe than sorry, but in truth and in the end, if we don't have the courage to go outside our comfort zone and change when change is warranted, then sorry is what we'll be.