Understanding and categorising your strengths and skills

Making sense of our strengths, weaknesses, skills and our instinctive feelings about them can help us define our personal brand and guide our career choices. But how do we even start making sense of them?/>
Strengths based interviews these days ask what are you good at? And what do you enjoy? This would suggest that a strength can be ascertained from a positive response to both these questions. But what's the difference between a strength and a skill, and what happens to those areas that you