Bullet, Being scared is natural. I was very scared just after my diagnosis 8 1/2 years ago. What you need to do is make sure that your fear does not consume you and prevent you from functioning, understanding what is going on and making the decisions you need to make.
Next Friday you need to be able to listen to what the doctor has to say, understand it, ask questions about your condition and the possible treatments and be able to make decisions. Jumping right to a hysterectomy may not be the right or best thing to do. I urge you to take a friend or family member on Friday to help you listen and ask questions. I had my Dad at my first post diagnosis appointments with my gastroenterologist and surgeon and it made a big difference as he helpd ask the necessary questions and made sure that we got all of the questions answered. Good Luck and let us know how it goes.