Mind set and belief in yourself. Self assurance is critical, if you do not beleive in yourself, and rely on yourself, and those around you, then your inner support is gone.
I agree with TS, mind set is obtained or lost early in life. Too many times parents will kill the "spirit" in a child through word and deed. A kid can only hear so often that he is expected to fail until he feels that is the only out come that is available. They shy away from challenges and run from adversity.
That spirit can be regained in many cases but only through strong mentoring and support.
My 2 cents.
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Hold Hard guys
Rick B.
Knowledge is knowing a tomato is a fruit.
Wisdom is knowing it is great on a hamburger but not so great sticking one up your ass.
Author - Richard.
Experience is what you get right after you need it.
Author unknown.