Lyric discussion by imhoterror 

Cover art for Giving Up, Giving In lyrics by Streetlight Manifesto

After listening to the end of the song about 5 times, I think this is what he sais after "don't stop" and before "i give up":

"It's what my brother(mother?) said about a billion times and its running inside my brain"

I hope i'm right and i hope this helps.