When entrepreneurs start a company, they definitely think about product, customers and product-market fit. They focus on raising moneyhiring, and finding space for their small but growing team. They might start thinking about culture. What they often forget to think about is the critical component of building their company: their personal leadership.

Here's the truth: the moment you decide to found a company is the moment you need to start thinking about developing yourself as a leader. Rapidly. High growth companies require high growth CEOs.

Outstanding CEOs nourish these four qualities: 

1. The practice self-leadership.

Being an exceptional leader starts with building your own self-awareness. It requires you to pay attention and the courage to confront the unpretty truths about yourself.