Sir i am passed h.s in 48% in bioscience stream from wbchse board this year. my marks is beng-45, eng-66, physi-43, boi-42, chem-45

Sir i am passed h.s in 48% in bioscience stream from wbchse board this year. my marks is bengali-45 english-66 chemistry-45 physics-43 biology-42 unfortunate i am failed in math math (20 out of 30). sir please help me what can i do now i am very confused.