If we're not pushed hard enough, we're unlikely to step out of our comfort zone; but if we're pushed too hard, we start to panic and feel overwhelmed. Instead, we need to aim for the "sweet spot" that is the Learning Zone.
What's been your biggest challenge and how did you overcome it? We put this question to you in our latest Twitter talk, and here's a collection of our favorite responses
Article 
Self-Assessment 
Video 