i am trying to reset save data and it lets me click it but doesn't reset it.
RESET will take you back to the start of your current playthrough but will not "fix" the game. FULL RESET (which is unlocked after your second playthrough) will reset everything back to how the game was when you first booted it up. Once the game is corrupted you are only halfway through the game. If you NEED to go back to factory settings you can delete the save on your computer and then boot the game up.