Pls help me somebody

So my class teacher today told everyone there attendence. And 75% is necessary to sit in boards she said. To give you proper days. Then you have to come to school on atleast 126 days. I don't like my school bcos its more like jail then school. You can't do anything there, just study and write And I don't understand anything in school. I have to study at home everytime . So I took a lot of leaves bcos of these things and my attendance is 109 days. Can I still sit in boards after this? Cause my friend was saying that our school will send attendance record to Cbse in dec. I am confused And my teacher was also saying that if you took some more leaves than you would fail in 10th. Is this true? Would I fail just bcos I have less attendance bcos I hate my school(my school is really shitty like worst in my area)