Also work on the overall dynamics of the arrangement so that the final chorus is the biggest.
a lot of song start of sorf and build up by adding instruments through out the arrangement.
heres a classic example
Snow Patrol - Chasing Cars - YouTube
I only listened to the first two verses and the begining of the chorus but heres a brief outline of whats happening.
A very short intro just a simple guitar chord riff
Verse 1 the same chord riff with soft vocals
Verse 2 same guitar add a soft background synth including vocals
Chorus add further guitar played in twice as much more and up the volume of the vocals.
Further reading on this can be had in Pat pattisons Berklee press book Songwriting : Essential guide to lyrical form and structure.
sooner or later the bass and drums enter and the whole thing tells a growing story that just gets bigger and bigger until if i remember right at the last chorus it goes back to a simple spacious feel just when you least expected it. Surprising the listener.
Classic like the begining could be the end.
Its like a good book or film.
the thing i love about so many tarrentino films is you get to see the ending first then the story unfold in a timeline that takes you back to where you started.
I hope this makes sense i just feel like i'm rambling now.