Creative thinking skills are as much about attitude and self-confidence as about talent. Creativity is often less ordered, structured and predictable. As you are not looking for 'one' answer, you are likely to come up with lots of suggestions that are not 'right'. This can be difficult if you are more used to analytical and logical approaches. It can also be experienced as 'risky' as the prospect of making a mistake or not coming up with an answer is more likely.