I don't know if it's right, I did an ear-transcript but it seems to fit.
Hope you enjoy it!

[Intro]    

[Verse 1]
            
Broken glass i

            
nside, won’t c

            
ut through me,
            
Pain behind my

            
 eyes, I turn 

        
to strength
         
Oh I will figh

t, I will surv

ive

[Chorus]
        
I’m invincible
        
I’m unbreakabl

e
             
I’m a diamond 

        
cut to last
        
I’m unstoppabl

e
        
I’m a hero
             
Like a phoenix

          
 from the ash
     
Oh oh oooh

[Verse 2]
            
Cracks run thr

             
ough these wal

              
ls, but they s

            
till stand str

ong
            
Heart covered 

             
in scars, But 

           
my fear is gon

e

[Pre-Chorus]
          
Oh I will figh

t, I will surv

ive

[Chorus]
        
I’m invincible
        
I’m unbreakabl

e
             
I’m a diamond 

          
cut to last
        
I’m unstoppabl

e
        
I’m a hero
             
Like a phoenix

          
 from the ash

     
Oh oh oooh

[Bridge]

Nothing's gonn

a make me, bre

ak or shatter
             
No one's gonna

              
 tell me I don

          
’t matter, no

I won’t let yo

u

Time is runnin

g out, keeps g

etting faster
             
Gotta find a w

              
ay, rewrite th

     
e answers

Till I can say

[Chorus]
       
I’m invincible
       
I’m unbreakabl

e
             
I’m a diamond 

        
cut to la-ast
        
I’m unstoppabl

e (unstoppable

)
        
I’m a hero (he

ro)
             
Like a phoenix

          
 from the ash
        
I’m invincible

 (invincible)
        
I’m unbreakabl

e (unbreakable

)
             
I’m a diamond 

           
that will last
     
Oh oh oooh
     
Oh oh oooh

[Outro]   

End on