I fear I am going to die 5 years earlier than I could just because I worry and stress too much. And what for? Nothing! What happens, happens, what is, is... but I can't avoid it.
I feel like it's my duty because he is portuguese
Relax, things happen, good and bad. We come back stronger from the bad, and try and build on the good. Stressing over occurences limits our ability to learn and develop as human beings. That's my philosophy.
He is such a fail, he tried to point out a grammatical flaw in your post, but got it completely wrong.