"
it's nothing wrong with me
The kids are all wrong, the story's all off
Heavy metal broke my heart
Come on, come on, and let me in
Bruises on your thighs like my fingerprints
And this is supposed to match
The darkness that you felt
I never meant for you to fix yourself
[Chorus]
Some legends are told
Some
"Mummified my teenage dreams,"
At a certain point his teenage dreams were not to be realized and he put them away in a safely guarded place. A tomb but also a sanctuary. Mummification was means of preservation and rebirth in the afterlife.
"No it's nothing wrong with me."
He feels this is normal and you should protect your dreams in this way and not give up on them but hold tight but in secret and sometimes the proper time is not when you think.
"The kids are all wrong the story's all off,"
I think he is alluding to youth thinking that dreams come true instantly without having to persevere or exercise patience or persistence. Everyone is special to someone but only your dream is special to you. Don't shout it from the rooftop hold it tight and work to make it happen.
"Heavy metal broke my heart."
I think he is disappointed with the "eat your soul message", of heavy metal (not literally) as there seems to to be a lot of anger and hate wrapped up in heavy metal that is misguiding the youth of tomorrow.
"Come on, Come on, let me in, Bruises on your thighs like my fingerprints. And this is supposed to match like the darkness that you felt."
This actually sounds to me like a false accusation of abuse, specifically sexual from the thigh reference. I believe that a scorned lover accused him because she was devastated and lost and lashed out at him in pain.
"I never meant for you to fix yourself".
This sounds like he went with let's be friends and that went very poorly from above. How could he reach out to help her after something like being accused falsely?