Assertion: "You can do anything you want." Do you believe it?

It’s a common motivational assertion. It sounds like these:
– “You can do anything in the world that you want.”
– “You can do anything you put your mind to it.”
– “Any goal you set for yourself can be achieved.”

What do you think of these assertions. Do you think they are true? Do you consider them unrealistic?
Do you really believe this for yourself?
What does it mean that you can do anything at all?
What does it mean for you that you can do anything at all?

if you really can do anything you put your mind to.. are you doing it?