Is it worth it to take a drop year to qualify for the JEE Advance?

Is it worth it to take a drop year to qualify for the JEE Advance? I have always read about those who get in have an already high score in 1st attempts like (90+ percentile) who want an even higher score in 2nd year's attempts but never a student who was average / below average or just really unlucky. r/JEE