You have value beyond measure. Don't let things or people rattle you. Stand firm in your goals, dreams, and beliefs. If you have a dream, chase it. The size is irrelevant. Why not you? The only thing standing in the way of your dreams are your own doubts and fears; you are limiting yourself. Choose to see beyond the self made barriers.
Part of the changing process is owning your CHOICES, both good and bad. Life presents you various situations but you CHOOSE your response to them. You are in the driver seat, the author of your own story... if you don't feel that way, it's time to make a change.