Dear aspirant,

Taking a drop is a brave decision in my opinion. So, use this year wisely. Make sure you make a schedule for yourself and follow it rigorously. Write as many mock tests as possible and practice all the previous year questions. If you are aiming to get a good government/private college, please aim to get a percentile of about 98 in JEE Mains, If you 99+ you have a good chance of getting CSE in top NITs. There are various entrance exams like VITEEE, AEEE, BITSAT. Give them all to maximize your options and chances. Try preparing for JEE Advanced but don't devote your full efforts into that. If you aim to get a good government/ private college focus a lot o\more on the Mains, you'll have a lot of options.

Hope this helps.