Great help tweaking

I just first of all prepared with the Official Guide to the TOEFL test and used this book because of its good reviews and more severe tests for fine tuning.
Preparation time: a total of 1.5 weeks relaxed, including 3 days with this book.
Prerequisites: High School English course, English classes, 2 scientific papers in a simple (technical) English written and from time to time conversations with English-speaking colleagues and fellow students.
So the basics are sitting, but is far from running "Oxford English".

Result: 107/120 pts.

The tests in this book are more demanding than in the other and correspond more to the standard detailed in the real test.
Since I had worked through the other book in advance, I have here made only a few exercises on the CD and chewed through, especially in the last few days the tests, which - in retrospect betrachtet- was a very good idea.

Even people that their language skills are not sure, I recommend to coincide with a few preparatory tests on "the big day", because you have to get used to the pressure of time, which is in my opinion the real problem.
Bissl resistant to stress should be on the test already :)