我孤军奋战最后遍体鳞伤
[wŏ gū jūn fèn zhàn zuì hòu biàn tĭ lín shāng]
Translated to 'I Fight Alone In The End Wounded All Over', this expresses an overwhelming feeling of solitude, struggle, and pain after a personal battle or hardship where no support was available and the user emerged injured.