First. congratulations on the weight you've lost so far. You've obviously worked hard and should be proud of yourself for what you've accomplished so far. Next, you need to know that hitting a plateau is completely normal. The important thing is to understand why you've hit this plateau. Try reading Understanding Weight Loss Plateaus and Overcome Your Weight Loss Plateau. They are both great articles that will help shed some light on your personal situation. Once the necessary lifestyle changes have been made, you will find that you feel a whole lot better about keeping the weight off.