it is not a good idea for a complete novice to try to understand English "pop' songs. They are written solely to get the words rhyming in a melody, and often in such a way as to invoke different emotions, responses and memories for each individual listener.
Basically the song is about a man/boy who has been reading wondering and dreaming about about the fictitious characters in old books, he seems to be saying to his girlfriend I want to be like this and she is saying to him. I just want an ordinary person I can hold and miss. "something just like this'
To use that particular song for learning English -you can stop the video and write down the individual natural one line phrases of the song.
except the lines that say wanna.
"I have been reading books" -of old
"The legends and the myths"
"Achilles and his gold"
'And batman with his fists"
"And clearly I don't see myself upon that list"
"but she said but where do you want to go"
[wanna is only for the song indicating how natives speak but do not write]
"how much you want to risk"
"I'm not looking for somebody with some superhuman gifts"
"some super hero"
"some fairy tale bliss"
"Just something I can turn to"
"Somebody I can kiss"
"I want something just like this"
study the individual natural phrases on each line and leave understanding until later.
He wants to be a superhero. He doesn't think he will ever be on that list.
[HE BELIEVES HE CAN'T MAKE HER HAPPY WITHOUT BEING A SUPER HERO]
she just wants a normal guy someone she can turn to
someone she can kiss
she wants something like this.
AND THEN LIKE MANY POP SONGS THERE IS A LITTLE TWIST TO THE SONG
is about him AGAIN he wants to be a superhero, then there is the second part with slightly modified lyrics for the male part[meaning the same] before settling back into the female part. She just wants something like this
"Something she can turn to"
Someone she can kiss" and miss