I know TOEFL is ridiculously expensive! I had to work extra hours. I can't help you with anxiety (I myself struggle with it, so..), but I found link to popular website for TOEFL. Both are free, and seems they have pretty good practice questions. One of them must have 5 free full practice exam. I'm not familiar with situation in Egypt, but public library can also have good resource.

TestDEN Online Courses for TOEFL, TOEIC, and Accent Reduction
Free English Tests for ESL/EFL, TOEFL®, TOEIC®, SAT®, GRE®, GMAT®

In case you find you do better in IELTS (or any other standardized test, like Cambridge), just email the university ask. You know, it's free to just ask. When I applied, none of them mentioned IELTS in their website, but all of them actually accepted. I just emailed them and said i already have IELTS score, and they told me I don't need to take TOEFL. I hated the time-pressured speaking part of TOEFL, and long and complicated reading part.

Anyway, good luck for the exam. You will do great. Hope that can somehow reduce your anxiety.