My guess:
Its The Event in the Nibelheim Villa, when you go back there after Cloud getting back his memory. It's the event when he remember his escape with Zack.
thoughts in your mind send you off course --> yeah when Cloud remembers
maybe you're hopeful, maybe you don't care --> when Cloud and Zack are on the pick up, Zack talks about what he want to do.
but thoughts send you to never ending violence --> When Cloud remembers he suffers
only to be saved by those deeming themselves helpful --> Hmmm, that could be Tifa when she helps him getting back his correct memories or Zack 'cause he helps Cloud to escape.
