I wonder when our mindset and believes change, since when we kids, we have no fear, we believe and we are happy, but at a certain age it all starts to change. It's the system and people who teach us the scarcity mindset and fear and unbelief.
It is our choice to change and our ability to change our mindset and beliefs but it takes daily work and progress and surrounding ourselves with the people we want to be like.
If your circle of friends have scarcity mindset then you will become like them, but if you surround yourself with people of abounded, successful mindset then you become more like them.