Working in entertainment, people can quickly become discouraged when you do not see the results that you might be hoping to achieve. This is true in all areas of life, too. Feelings of discouragement will not help you at all. (Check out my article about courage here!)
You must understand that (whether you're an actor or not) you are a courageous, unique, and incredible person! Do not allow anything or anyone to stop you from reaching your full potential in life. Take control of TODAY, regardless of how difficult things may be in your life right now. You WILL get through it, and there are many people around you that love you and will always support you.
Also, please do something for me right now. Just remind yourself that you're beautiful. It is a fact. :)