Is it appropriate for someone to claim they are "great" at something, even if they are not as skilled as others in that field?

Sometimes a declaration leads to delivery.

If you state something, you are more likely to deliver on it.

People in business do this all the time.

They take on ambitious projects (bigger than what they have ever done), pulling in all the resources they need after taking up the project.

As a freelancer (in commissions administration), I do that as well.

When asked during the interview, “Do you think you can do this?”, this is what I say:

“I am not sure. I think I should be able to do it, based on my experience and skills. But both you and me will both find out if I can do it, at the end of the first week itself.”

In this way, I make the interviewer feel more confident about hiring me.

It is a strategy that combines humility and confidence.

Combine humility and confidence, and you will be able to respond to more opportunities, including challenging ones.

Don’t hope to just luck out, when it comes to job or business opportunities.

Turn luck into pluck, by saying yes to challenging opportunities.