Class 11

You need to complete you HSC first to be eligible candidate for NEET.

Why not? If you have interest in maths or biology, just go with the science stream.

Hello there,
Please complete HSC first and then go for event management courses. This would lead you to a good position.

It is good to read that you still aspire to pursue further education. You can explore a distance programme in graduation in arts/commerce.

Post 12th, you can explore LLB/BBA/BBM/mass media/event management. You can also pursue B.Com with specialisation in a host of areas like banking & finance, accounts, HR and along with it explore CA/ICWA/CS.

Since you are pursuing 11th commerce and are good in computers. I would advise you to pick up a Diploma course in /MSIT from a private institute which is involved in computer education and explore your interest in computers. You can also explore MBA in IT post completing your graduation
IT is a vast field with areas in software development to infrastructure management, so you need to decide what is your interest in and based on it take a step further.

I think you should study class 11th, class12th and prepare for IIT-JEE.

For IITs, you must be really consistent with your studies. You may join a coaching institute (VMC of FIT-JEE) and prepare simultaneously with your board exams. But if you wish to prepare on your own, gather GOOD study material (buy coaching institute modules), but do not collect too much material, only get what is required. First get your concepts crystal clear and then move on to numericals. Solve as much questions as you can. Practice daily. Give more time to mathematics and then physics. Word hard and forget everything. Good luck!