The Opposite
Maybe a similar approach to your writing could help.

If you always write songs around the same tempo, try considerably faster...or slower

If you are stuck going to the same chords, listen to some songs you like that don't use those same progressions.

Try accelerating and decelerating your melody tempos. As an example let's say you typically write with an 8th note feel. Use the exact same pitches but condense them into 16th notes, and repeat with a slight variation the second time. The same could be said for slowing it down to whole notes.

Write your melody like you always do, then flip it. If people can invert other people's melodies, why can't you flip some of your own?

Take one section of your song and bump it forward by and 8th or 16th to create syncopation.

Add some chord anticipations...or let the melody do the anticipation for you. I really like letting the melody do it.

Do the opposite of your typical lyrics. If you always "praise God" try "smackin' down the devil." It will DEFINITLY give you a different song, feel, and approach.

Add breaks

There are so many...and obviously others have mentioned some great ideas!

Have some fun with it. That's usually when your mind is allowed to be creative!

I hope that helps in some way.

Best of luck!

Chad (Hope that makes it easier)

TEMPO TANTRUM: What a lead singer has when they can't stay in time.