Your mind doesn't know the difference between reality and fantasy. Your mindacts on what you feed it. Feed it good thoughts.
Most people stand on the dock of life waiting for their ship to come in when deep down inside they know it has never left port.
Is your fear of failure greater than your desire to succeed?
I once dieted so religiously I quit eating in church.
Positive thinking will let you use the abilities, training and experience you have.
When I became proficient as a salesman I was invited to teach new hires.