Dear student,

You have scored a very good percentage in you exam and if people around you are telling you that it is a very bad or an average score I would suggest that you ignore them, as all you need is 75% marks to be eligible for the top tear exams like JEE or NEET and a score of 50% for rest of the exam conducted in India for UG courses.

And you simply scored way above than that eligibility criteria marks so do not stress your brain on these unnecessary topics and study well for your intermediate.