Relax Effectively While Preparing
You need not to prepare for IELTS consciously every time. It is not like winning a world war, wherein you need to be attentive 24/7. No. It is a little difficult exam, especially for the non-native speakers, but then all IELTS checks is whether you know English or not.
Does that mean you should relax 15 hours a day and then study four hours a day? It depends on your level of English proficiency. When I say relax, I mean relax effectively.
What do you do when you are tired of studying for IELTS? Take a walk? Or go to you tube and watch some videos. Instead of wasting your time in some videos that have nothing to do with IELTS or calling people whom you talk in your native language. There is a better option to relax.
Listen to English songs. You may say they contain slangs. Yes they do. What then? Listen to old English songs. It could be The Beatles. Learn their lyrics and try to sing them the way you sing your native songs.
This way you may be able to relax while still continuing with your preparation of IELTS.
You need to give it your all, to get something out of it. You actually need to breathe IELTS to get a good score. Remember, more the sweat shed in practice, less is the bloodshed in war.