Dr. Shahidi consultation - questions before surgery!

Hi all! I have had my initial consultation with Dr. Shahidi and the subsequent psychologist appointment. The consultation was information and I found Dr. Shahidi warm yet professional. During the consultation he assessed what I don't like about my nose as well as informing me of the functional things that he found to be wrong. I am undergoing a Septo-rhino-tubinates surgery. He then took a before picture of my nose, and then created two computer generated images (one straight option and one curved option - please tell me which one you like!)
He seems very experienced and given my history of anxiety, even made me undergo a compulsory psychologist appointment. This was done to assess my ability to psychologically deal with the changes after surgery. I have now been given the all clear to book surgery, but there are a few things that are still playing on my mind...
1. I want to know how much my front profile will change. The psychologist told me that the side view will always improve, but sometimes the front can totally change the rest of your face. Has anyone got advice on this?
2. I am scared to actually commit. I know I hate my nose and have for a very long time, I'm just finding it hard to believe that I can now go ahead with surgery. Any words of wisdom?
3. How much can I expect the end result to match the computed generated image? Is there any general rule about skin type and the amount it will shrink?
Any information would be much appreciated!