If you aspire to clear IAS examination , you bear in your minds that this is a competition not just an academic examination where you put in limited efforts to get good percentage of marks.
In a competition, you sometimes don't get success despite putting in your best of that time. If you don't have this attitude, you can not be a good competitor.
One such student I had three years back. She went up to interview level in her very first attempt. She however couldn't make up to the final merit list of selection. Unfortunately, she could not clear in the second attempt also.
One evening , when i was about to leave for my residence, she came to my institute and poured her entire frustration onto me.