Please don't give up hope already. I know that it is a scary thing. Believe me I do know what you are feeling. My mom and my sister both were diagnosed with breast cancer. My sister is going on 8 years cancer free and my mom is going on 6. Both were different stages and different types but they both fought hard and won.
Stay positive and take it one day at a time. There is hope. PM me if you need to. I have been in your shoes.