Do not worry you will be fine. Test can happen on one day or spread over two days. For me it all happen on one day. Some of the resources for test are
http://www.canadavisa.com/ielts/free-practice-tests.html
General English Grammar and Vocabulary Practice
Basic sentence structure. Find out about SIMPLE, COMPOUND and COMPLEX sentences. Do the quiz.
http://www.eslbee.com/sentences.htm.
Lots of general listening practice, including listening for academic purposes.
http://www.esl-lab.com/
General English practice from the BBC, including video-based work
http://www.bbc.co.uk/worldservice/learningenglish/
Grammar practice, vocabulary practice and podcasts to practice listening
http://a4esl.org/
IELTS Practice
The Cambridge ESOL IELTS home page, which links to excellent introductory IELTS resources
http://www.cambridgeesol.org/teach/ielts/index.htm
Key administrative information for IELTS candidates.
http://www.ielts.org/
Introductory information and exercises in IELTS listening, reading and writing.
http://www.examenglish.com/IELTS/index.php
Academic module writing assessment and sample scripts (click on bottom link ‘sample scripts').
http://www.cambridgeesol.org/teach/ielts/academic_writing/aboutthepaper/focus_on_assessment.htm
General module writing assessment and sample scripts (click on bottom link ‘sample scripts').
http://www.cambridgeesol.org/teach/ielts/general_training_writing/aboutthepaper/focus_on_assessment.htm
More IELTS writing samples with estimated grades suggested by teachers.
http://www.ielts-blog.com/category/ielts-writing-samples/
A fairly wide range of resources, including writing practice tasks with model answers.
http://www.ielts-exam.net/index.php
Some free IELTS lessons.
http://www.ieltsgym.com/?id=FreeEnglishlessons
