Step 4 of songwriting is choosing the layout of your song.
I usually include: -3 verses -1 bridge(connects the chorus and verses) -1 chorus
My choruses and bridges are repeated, but don't change(usually). So most of the time my songs are: Verse 1 Bridge Chorus Verse 2 Bridge Chorus Verse 3(different than 1 and 2) Bridge Chorus Chorus