One definition of a hook is a musical or lyrical phrase that stands out and is easily remembered. Definitions typically include some of the following: that a hook is repetitive, attention-grabbing, memorable, easy to dance to, and has commercial potential and lyrics. A hook has been defined as a part of a song, sometimes the title or key lyric line, that keeps recurring.
Creative accounting is a euphemism referring to accounting practices that may follow the letter of the rules of standard accounting practices, but deviate from the spirit of those rules.
Public accounting is an exciting field with huge potential to establish a successful business. My advice would be to learn to enjoy what you currently do until you find your first design client. Learning to enjoy what you already do, will definitely add value in your overall perspective when you would be operating your design business.