Following are several very different songs that include “change myself.”
1) “Wake Up the Mountain” by Helloween (1996) is a metal song: https://www.youtube.com/watch?v=3jEM4p_YNas Lyrics containing “change myself” are as follows:
Though I cannot change the world we're living in
I can always change myself
2) “Deep Inside of You” by Third Eye Blind (2000) is an alternative rock song: https://www.youtube.com/watch?v=xBk509ntyUs Here are lyrics containing the two words you wanted:
I've never felt alone
'Til I met you
I'm all right on my own
And then I met you
And I'd know what to do if I just knew what's coming
I would change myself if I could.
3) “Change Myself” by Todd Rundgren (1991) is a rock song https://www.youtube.com/watch?v=v10gEIUcK70. Here are the lyrics excerpts with the two relevant words you are looking for:
I want to change the world
I want to make it well
How can I change the world
When I can't change myself.
Hope you found something helpful here.