How to get rid of yahoo answers addiction?

i'm a student.i joined here before 2 months to ask the doubts about my career regarding subjects and exams...once i answered an interesting question in P&S section and now got interested in asking more silly questions than questions abt education....i'm totally addicted to it...i missed my classes many times for yahoo answers..i cant concentrate in my studies and now i'm preparing for IIT and AIEEE exams....i lost interest in my studies and gained interest in yahoo answers...i'm not able to complete my homework bcz i start using computer after coming from my college...plz help...i tried many times not to open yahoo answers but i failed.....what should i do now?i prepared a time table but i'm not able to follow it....thanks in advance :)