i need some sleep的歌词是想说什么？

i need some sleep.
you can`t go on like this.
i try counting sheep.
but there`s one i always miss.
everyone says,"i`m getting down too low"
everyone says,"you just gotta let it go"
you just gotta let it go
you just gotta let it go
i need some sleep
time to put the old horse down
i`m in too deep
and the wheels keep spinning round
everyone says,"i`m getting down too low"
everyone says,"you just gotta let it go"
you just gotta let it go
you just gotta let it go

可以理解为主人公爱上一个不该爱的人，陷得太深而无法自拔。虽然告诉自己"let it go", 但是还是睡不着觉

i need some sleep. you can`t go on like this. i try counting 可以理解为主人公爱上一个不该爱的人，陷得太深而无法自拔。虽然告诉自己"