Hello dear student,

Please don't be scared of the exam everybody is going through this face and if you are going to be scared of the exam then you won't be able to perform to your fullest potential and I hope you don't want that. you just go to NCERT solved questions and build your concepts anyways this is not a time to build concepts but I will suggest you to do concept of the topics for studying at the present moment because if you want study with full concentration then it's of no use. So what so ever you are studying study with all your concentration because that will only help you to get marks.solved previous years question paper and solved question banks that are easily available in the market there are publications like Arihant publications and also mtg publications they really provide good question banks and previous year sample paper too . This will help you to gain marks and I hope this was helpful to you

Best wishes