Failed in One of My Subject

Just now around 0740 or 0745, my maths teacher came in and brought maths paper 2 but i failed because i was careless in my calculation or probably i have never read the question properly. I was like trying hold my tears in front of my friends because i don't want them to know that i cry because i failed my maths. Around 0810, my science teacher came in and brought science paper 2 and i passed & felt happy. When i looked at MCQ where my science teacher showed us our marks, i was too happy because i passed my paper 1 too. After that, my maths teacher came in and brought maths paper1 but i failed too. I don't know what to do with my maths but when i fail something, i won't give up and try to learn my mistakes from the paper. It's alright to fail one but maths is important to me because in future when we need our job, we need maths,science & English because this is the only way we can pass through this subjects. Just don't give up & try to work hard from learning our mistakes. See Ya:)