Answer:
I am good at concealing what's real and hide what's true. Sometimes I bring out the courage in you!
Some try to hide, some try to cheat, but time will show we always will meet.
My days are numbered.
I am shared by goats devils and unicorns.
I fly when I'm born. I lie when I'm alive. I run when I'm dead. What am I?
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.