Dead battery can not jump start: Honda Accord 2003
 

I have a 2003 Honda Accord Coupe. All of a sudden the battery died late
yesterday night, I could jump start it then though. This morning while
jump starting I made a HUGE mistake of reversing the polarity on the
batteries for a very few seconds. After realizing this mistake I made
the proper connections but the car won't start. I am not sure if I blew
anything off, I couldn't smell anything. Please help!