Frustration is a very positive sign. It means that the solution to your problem is within range, but what you're currently doing isn't working, and you need to change your approach in order to achieve your goal.
The message of frustration is an exciting signal. it means that your brain beleives you could be doing better than you currently are.
All successful people learn that success is buried on the other side of frustration.
Success is buried on the other side of rejection.
Much more devastating than frustration is the emotion of disappointment.
I have seen business moguls achieve their ultimate goals but still live in frustration, worry, and fear. What's preventing these successful people for being happy? The answer is they have focused only on achievement and not fulfillment. Extraordinary accomplishment does not guarantee extraordinary joy, happiness, love, and a sense of meaning. These two skill sets feed off each other, and make me believe that success without fulfillment is failure.