How to choose subjects in 11th

Well! This question commonly cause a lot of confusion in mind of students who are about to complete their 10th and have to choose a stream for them. each stream has mainly 3 mandatory subjects and one language subject (probably English) and also have to choose one optional subject for them. Well my suggestion is this to choose it in engineering fields (PCM)  and also in commerce. In arts u can choose economics and in medical u choose Math's. To choose your stream:-  To choose your stream you have to think your dream means what you are looking for in a future to become for example:- engineering ,doctor ,IAS, etc, According to your dream you have to choose your stream and optional subject. You have not to follow someone like a sheep. You have to choose your stream and have to do a lot of hard work in each of subject do you choose. And have to do a lot of practice after learning basics of one chapter of any subject. Because                ...