Dear Student,

At this age you really don't have idea what you will be going to be  because right now you are thinking to be a engineer or a CA but once you get older you will start knowing the right career of your future according to your interest.

Moreover after taking science (maths) you can jump to the CA career but if you choose commerce then you can't go in the field of engineering.

Good Luck :)

Hello there,
Both commerce and science are good subjects with wide scope.
In order to choose one of them, find out the subject you are more interested in. Don't see your score rather see your interest.  Have a clear aim and be confident about it.  Ask yourself whether you are interested in marketing,  business,  finances, accounting or  critical reasoning,  creativity , innovation.
If you are confident about yourself,  you can do wonders in any subject you  choose.
You have enough time, just sit and think about it.
Thanks