I would argue that patience is one of the most important traits to have as an entrepreneur.
If you're managing your expectations correctly, you would know that nothing happens overnight. It takes time for things to come together. It takes patience to win.
The world of business and entrepreneurship is a learning game. When you believe something one day, you'll learn you were completely wrong the next. You'll find yourself failing over and over again, but don't chalk them up as failures.
Instead, train your mind to register these "failures" as lessons learned. There's not one person in the world who achieved anything great who didn't have some setback along the way.
You need the patience to persevere through all those setbacks and challenges. Those who expect results right away are the ones who give up before they even give themselves a chance. Remember, diamonds are formed under immense pressure and heat exerted over time. You are no different.
Trust the process.
Give yourself time.
Keep moving forward.
You'll go far.