My background is in performance, and while the stereotype of an artist is that of an overly extroverted extrovert, in reality, a great deal of creatives are introverts. Some of your best ideas might come during quiet periods of reflection, when you have the freedom to consider different perspectives and experiment with creativity and logic. So don't think there's something wrong with you if you're not brimming with ideas in the heat of the moment. The creative process is just that — a process — so trust that yours is working.