Hello Jatin,

If you have interest in Science field but because of length of books and content of books you got frightened then it is OK but to leave the interesting subject should not be the option and also it is not the appropriate way to deal with your fear. When I took Science in my class 11th I was also frightened of the result that whether I will be able to manage the science subject or not but I took it and accepted it as it was my interest and focused carefully on concepts and topics and also attended the practical very seriously so the lengthy content got easy for me and then I realized that I took the right decision by joining science stream. So don't get frightened, if you have interest in science field then it is good to deal with problems related to science and now if you have option to repeat the class 11th then I would recommend you to do so.

Also if you have completed your class 11th from commerce side then Commerce stream is also not bad because it has also wide amount of career opportunities but the main point is interest, if you don't have interest then anything which you study will get wasted.

So just choose your interest and come out of your comfort zone.

I hope this information helps you.

Good Luck!!