Accounting & Commerce

CMA, ACCA, CPA, MBA, M.Com are obvious options you can look for after B.Com.
Check the below link-
https://www.shiksha.com/accounting-commerce/articles/course-options-after-b-com-blogId-12939

Yes, there is an opportunity of learning basics of accounting and finance.
Do certificate course/ Diploma on accounting and finance. There are lots of college which provide this course.

Yes, you can view information about university at their website.

Graduation admissions will be done on the basis of 12th. So, wait for the board results to get declared.

Commerce team is the best to compare Art.
There are many future job opportunities, especially job in Bank, Teacher and other job opportunities.
So, you can choose commerce stream.
You can complete your graduation (B.com) to explore many Job opportunities.

If you do Non-Medical, you will be having wider career options. You will be able to pursue career options of other fields like commerce and arts also. But, at the same time, you need to know that you must choose a stream in which you can do smart work and you have interest because, many career options will not help you excel in any field. It is your interest and hard work that can help you achieve your goals.

Both have their own significance, but B.Com hons will be better. In you B.Com, you can also study some subjects of BBA.