What are some effective ways to ensure that a narcissist's manipulation doesn't alter your personal narrative and reality?

I have heard that French was a dying language in the world, surpassed by English and Spanish. In the past, many foreigners learned French for prestige. Is French still a useful language to learn?
How do you mend a broken soul and heart? This is killing me. I feel so alone.
Why are you only hiring attractive people? What's wrong with you?