JEE

u can apply 3 times added Ur 12 appearing year and for good college on jee mains basis u should have at least 180 to 220 marks in Ur pocket

if dropping then repeat 12th else join good universities

You can approach to IMS ENGINEERING COLLEGE
AKG COLLEGE
ABES GHAZIABAD
IEC NOIDA
ITS GREATER NOIDA

The amount of time you need to give to your boards study depends upon your caliber. If you are a bright student, 2-3 hours for 12th and 6-5 hours of jee mains study would suffice. Do not study for more than 7-8 hours a day. Rest properly and take a 15 min break after every 2-3 hours of study. Now, this is possible on holidays. On school days, utilize the time in your school for the boards study like in free periods.
If you are a weak student, give 50-50 distribution to both.
Watch a movie once a week, do not cut yourself off from entertainment. Both study and entertainment is important for a healthy mind.

Do not try next year because according to your marks it is not easy for you to get admission.

No, it is too difficult with these marks.

obc does not get enough banefits so pls according to me use college predict or

You cannot get any government or private college like LPU, etc.

Check out the following links:
https://www.resonance.ac.in/jee-main-answer-key-solutions/jee-main-2016-rank-predictor.php
https://www.shiksha.com/jee-mains-college-predictor

https://en.m.wikipedia.org/wiki/List_of_engineering_colleges_in_Delhi
College list
go for counseling
or approach directly to college campus for admission of you are fixed on your choice