Hello Student

It'll be better for you to attend from the very beginning of class 11. You have to  spend at least two years to get your choice of subjects. Can appear for different streams of 5 subjects but you will be not so fruitful in your future course of study. Result will be of no   object of education. For faisley to fulfill your desire and to get your future prospect bright I have to you start from the very beginning of class 11 otherwise it will be a doldram

On the other hand you may face problem in future of education