Poor child! None of us are going to hell, the only condition is that you have to believe in Jesus! Listening to music is NOT A SIN. LET ME REPEAT: NOT A SIN! You are who you are, and God made you that way for a reason!
Music in itself is not evil, but it depends on the message of the music. Music can be very powerful emotionally, and God does not want us to fellowship with demons.
That's what's good about me, i don't consider myself weak minded, when i listen to rob zombie's 'Dragula' and hear the line
'hound of hell you cry, devil on your back, i can never die'
I don't let messages that might carry get into my head, i keep it clear, i think it's a blessing i have. Although PHYSICALLY i'm not strong >.>
Everything starts in the mind. Therefore, how can you say you are not weak in the mind, but weak in the body? Unless you are referring to a physical illness.
Christ said,
But those things which proceed out of the mouth come from the heart, and they defile a man. For out of the heart proceed evil thoughts, murders, adulteries, fornications, thefts, false witness, blasphemies. (Matthew 15:18-19)
The heart meaning the intangible chracteristics of man, like his mind, his motives, desires, etc. Many times, for example, the flesh is tempted to do something because the mind focuses on that particular thing. Sin is therefore voluntary.