I believe that a trusting attitude and a patient attitude go hand in hand. You see, when you let go and learn to trust God, it releases joy in your life. And when you trust God, you're able to be more patient. Patience is not just about waiting for something... it's about how you wait, or your attitude while waiting.
Your work is going to fill a large part of your life, and the only way to be truly satisfied is to do what you believe is great work. And the only way to do great work is to love what you do. If you haven't found it yet, keep looking. Don't settle. As with all matters of the heart, you'll know when you find it.