Well, we are have to deal with stressful situations whether we like it or not. No matter how hard we try to avoid them, we cannot make sure that we will not experience stress in future. Yet, what we can do is change our approach to stress completely.
What it presupposes is that one will become more stress-resilient and try to cope with a difficult situation in a calm and reasonable manner. Surely, it is not as easy as it sounds but it is totally possible. What you need to start with is to figure out what your purpose in life is. In such a way, you will always remember that you need to overcome stress in order to get closer to your goal.
Learn how not to doubt yourself even though it may be quite hard at the beginning. The reason why it is so important is that it will give your belief that you can do it and that you will do it. Being confident is of great importance when you are chasing a dream.