Central Board Of Secondary Education [CBSE] — different sets had different questions

I'm a student of class 10, it was my first board exam paper ever and it was the worst for me, i'm depressed so much. I prepared all the things and i was confident that i was able to score 75+ but as soon as i got my paper i had a panic attack and my hands began to shiver and my left eye started to close as it seemed like blindness to me.
In my class, there was no comfortable seat and my all stationary instruments were falling from the desk and we were unable to see the clock and when we complained to the teacher, she said it's not your school that you try to talk to us like this.
Also, we were not allowed to have a watch with us and a water bottle. Are they making exams easy or more complicated for us?
Are they creating the future of india or making the students objects and machines?
Also, different sets has different questions.
It was the most horrific moment for me, all my classmates who got the good sets will score good and i'll not, and now i'm full of sorrow for this. They gave me set-3 with different questions and many students are complaining in my school for such kind of act done by cbse.
It's not an exam but just playing with the students by giving them different questions. It's like cbse is playing a whole different game with us.
Everyone is angry with such kind of act, i must get grace marks for this as i was unable to see the clock properly and we were not allowed to have our water bottle with us, we were thirsty and the school provided us water only for one time. Think about this, how could you judge us by making us giving exams in such an uncomfortable surrounding?
And it's totally unfair to give the students different sets! Please give me justice for this! I'm mentally ill thinking about my maths class 10 board exams, i need grace 10+ marks as i was going to lose my consciousness at that time in the exam hall because of the miserable conditions.
Thank you, i hope cbse will support us.