If you have high broadband internet you can download as much as you want of IELTS
Or you can join some classes, there they will provide you with the relevant material
Dont attempt too many tests as it will be a wastage of time
The best should be that you read newspaper on daily basis and learn new words. It will also help you in your sentence formation
You should try to cover all modules everyday that is Listening, Reading, Writing and Speaking
