Hi Ray,
Welcome, Yes, things do go fast once they have have you scheduled. As you can see there is a lot of information here. It will help you get through this process.
Keep posting and know that someone will answer. I did not find this site until I was about 4 months out of treatment. So you are very lucky to have found it as you enter into treatment.
Not sure if anyone has said anything about a Peg Tube to you, but it is a must. It will help you keep up good nutrition and liquid intake. Some people here could eat all through treatment. I could not, so had to use the Peg Tube. All during your treatment make sure you swallow something. I am sure your Dr.s will explain that, but I wanted to mention it.
Try and take one day and week at a time. Keep reading it will help answer a lot of questions.
Take care
Diane