Commerce

Hello Honey,
You have taken commerce. CS comes under engineering. This requires PCM in 12th with 75% marks for admission in NIT or IIT. You can do CA after graduation.

Yes, you can lead a bright future, complete a degree and go for MBA from a prestigious IIM, you can have an excellent future.

Students with degrees such as B.Com Hons and M.Com with industry recognized professional qualifications CA, CD, CFA, CMA etc get good job abroad after few years of experience. Opportunities may not be high in number to engineering or medical grads but lot of Indian commerce background professionals work in large number of MNCs abroad.

Commerce and business courses are very good in JMI as its faculty is very cooperative and corporate exposure makes these courses wonderful.

You can find the previous year's cutoff details here: http://www.iimrohtak.ac.in/addmission/wat-pi-2015.html .
Yes, there are a fair number of students from commerce background, in fact, I am one myself.

Other than CA and CS, you have ICWA and CMA which are also professional courses. You can do one of them. But you need to have patience and very hardworking.
Or, do an MBA in a reputed college after B.Com.
Or do M.Com after B.Com.

Yes, you can. Acting does not require any particular stream in class 12th. They generally have acting interviews/demo for admission.