Make a proper time management schedule in which you give time to all the subjects equally and prepare for them properly. Keep making notes for yourself thhat can be used for revision later as you progress with your studies. Keep practising questions and solving sample papers which will help you analyze yourself. Once you understand the pattern and type of questions asked by solving previous year papers, things become much more easy..

Refer to the site below to have more details about the same..

https://university.careers360.com/articles/icar-aieea

Best wishes. Thank you.