my go-to Stiles song is always Firework. (I like the David Choi version rather than the Katy Perry one)

Do you ever feel already buried deep six feet under?
Scream but no one seems to hear a thing
Do you know that there's still a chance for you
'Cause there's a spark in you?

the whole song is Stiles, to me. :D eeee, I get happy and grinny just thinking about it.

and also Hall of Fame by The Script

You can go the distance
You can run the mile
You can walk straight through hell with a smile

You could be the hero
You could get the gold
Breaking all the records they thought never could be broke
...
How you ever gonna know if you never even try?