I highly recommend the book "Soul of Money" by Lynn Twist!
Chapter 3 - Scarcity: The Great Lie.
There is a natural law of abundance which pervades the entire universe, but it will not flow through a doorway of believe in lack and limitation. Paul Zaiter
No matter who we are or what our circumstances, we swim in conversations about what there isn't enough of (I didn't get enough sleep, I don't have enough time, I don't get enough exercise, I didn't get enough done today). This mantra of not enough carries the day and becomes a kind of default setting for our thinking about everything, from the cash in our pocket to the people we love or the value of our own lives. It becomes the reason we can't have what we want or be who we want to be. It becomes the reason we can't accomplish the goals we set for ourselves, the reason our dreams can't come true, or the reason other people disappoint us, the reason we compromise our integrity, give up on ourselves or write off others....
It is not even that we necessarily experience a lack of something, but that scarcity as a chronic sense of inadequacy about life becomes the very place from which we think and act and live in the world. It shapes our deepest sense of ourselves, and becomes the lens through which we experience life. Through that lens our expectations, our behavior, and their consequences become a self-fulfilling prophecy of inadequacy, lack and dissatisfaction.
This internal condition of scarcity, the mind-set of scarcity, lives at the very heart of our jealousies, our greed, our prejudice, and our arguments with life, and it is deeply embedded in our relationship with money. In the mind-set of scarcity, our relationship with money is an expression of fear; a fear that drives us in an endless and unfulfilled chase for more. We start to believe the profit-driven commercial and cultural messages that suggest money can buy happiness, and we begin to look outside of ourselves to be fulfilled.
TOXIC MYTH #1: There's Not Enough
TOXIC MYTH #2: More is Better
TOXIC MYTH #3: That's Just the Way It Is
Chapter 4: Sufficiency: The Surprising Truth
When you let go of trying to get more of what you don't really need, it frees up oceans of energy to make a difference with what you have. When you make a difference with what you have, it expands.