Being sad and being depressed are two different things. Also, people going through depression don't look so, while someone sad will look sad. The most common reaction is, 'How can you be depressed? You have everything going for you. You are the supposed number one heroine and have a plush home, car, movies... What else do you want?'
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.