Note: [Unsure sections/alternate guesses] are written in brackets.

don't tell your mother
----------------------
don't tell your mother about
where you go when the lights are down
and don't tell your mother how
you're up to no good, nowhere to be found
well, it's time to learn not to work so hard
or not at all

how will we know when the end is nigh
on a day much as any other
run and play; while away the hours
and you know I would go if I could go
but I can't so thank you all the same

[suffice/surprised] to say I've turned away from it all
and don't think I'll be home for a while
'cause who needs a mother to [shout]
when I'm doing very well by myself

how will we know when the end is nigh
on a day much as any other
get out this house and while away the hours
[on cue began] well before the summer

and you know I would go if I could go
but I can't go now
would go if I could go
but I don't know how
you're exactly like the others
[older now/old enough