Is this for real? Can I trust this, or will it prove to be another disappointment?
Do I deserve this? Can I handle this? What if I fail at this, and others see me fail. It will be worse than if I just maintain status quo.
All I can say to help you deal with the constantly chirping, bird-brain mind is this:
Try not to listen to it.
Most of the time the mind is a cowering idiot. If you are telling yourself that description is harsh and does not describe your mind, just remember all those missed opportunities that it "reasoned" you out of. Or, consider how you would feel if someone else could listen in to what your mind has to "say."
Now do you believe me?
Be braver than your mind wants you to be. Your life will be wilder, larger, and certainly more creative.