My yahoo password didnot match with my accout

Hello,
pls help me last time when i tried to login my yahoo accont there came a message in which there was written that account and password did not valid .i tried several time but same messge came. so please help me for this problem. i forgot my secret answer also . my id was b_sal4u08@yahoo.com so some body can help in this problem than you can mail me in bishal8@gmail.com.