Career

Its better to complete your 12 in PCM first

Yes you can, ECE entirely is not about field work, monitoring, designing and even the administration role are the options for ECE graduates

From which place u want to do . r u from bangalore? see more in iftubip(dot)blogspot(dot)com

sad to tell you that if you have chosen commerce streame in class 12 ,there is no any aspect of getting diploma in automobile engineering ,however if you are eager then you can do polytechnic on the basis of your 10th . if you have completed 12 with pcm you can go for automobile engineering . again there is no chance of proceeding to any engineering degree after completing graduation from commerce streame.

CA requires lot of patience and hardwork as the success rate is merely 3 % every year and thousands of students do it. While one can not map the human potential ever, you can be the best judge as per your capabilities. There is no age bar to pursue it. The best way is to go through the course in details for all the levels and decide.
All the best