You've given your friend some very good tips on how to live more positively and more successfully. At some point, however, you have to figure that "the ball is in her court" and it's up to her to take some responsibility.

You can't control outcomes. This person sounds like she will manage to get herself fired. Then that will confirm to her that she is a victim again. People like that tend to go deeper into their embrace of victimhood. Then they want everyone else to validate how unfair life had been to them. It becomes a self-fullfilling prophecy for them.