Hi friend,
Don't worry at all. Auditing is an easy and interesting subject. In GuruKripa books they give the trend analysis table chapter wise. Go through it and identify the most important chapters. Put your focus mainly on those chapters. Try to prepare gist (summary in less number of words like side heading etc.) and revise it thoroughly for imp topics
In case of special audits leave those, which have been asked in last attempt and focus on other imp topics.
Be thorough with company audit.
Auditing faculty Ganapathy from Chennai use to give important topics list for every attempt get it and be thorough with SAs specified by him. He also specifies how to write the paper, follow that it works.
Most important thing don't forget to go through compiler at least once.
try to write more practically in exam like writing examples where ever possible.