I can achieve anything I put my mind to.

Most of what you want has never actually been given a Tuesday. It stays a wish, checked on occasionally, moved from one year's list to the next.

Setting your mind on something is a brutal operation, because the other candidates have to be dropped. Someone with nine priorities has none, and usually knows it.

Which is why the short list matters more than the confidence. Pick the one thing this season that gets the good hours, and let the rest wait without guilt. A mind properly pointed is a startling instrument. It is just rarely pointed.