Thanks you so much , after reading this i talk with my parents about that and now i am going to change my steam and my life. Once again thanks for your suggestion and for your warm wishes. This will help me a lot

All the best dear.. :)

Hlo can you please help me. I have a question.
How much time i need to study in one day. Did i need to follow any time table to achieve good percentage?

You do not need to take so much of pressure dear.. It's just your 11th.. Take some time to settle down first.. Just make sure that you revise the concept which is taught in class or coaching (if you have joined one) daily and regularly. See if you think that you'll study 2 months before exam and gain good percentage, then it's not good for you in the long run.. So initially spend 2-3 hours per day for self study apart from your coaching and school.. And gradually increase the time till 4-5 hours a day.. That'll be sufficient if you are studying daily.. In case you have a test or something put in some extra time for that.. I hope this helps.. Chill and Don't forget to enjoy your school life..

Okk tell me one more thing last time because i need to clear all my doubts.
What you think is a better option Regular classes or open(dummy).

Go for regular classes..