What is to succeed in having been human, to succeed in having had a life? The worst of them measure your success only by your material accumulations. These things do not describe success.
I’ve heard a number of shuyukh say when a faqir, when a person on the Path has trouble, then he knows that he’s basically on firm ground. It is when things start going well that the faqir gets worried because then he knows that sooner or later the difficulty is about to hit him.
Every person is deeply untrustworthy. Not because you’re deliberately untrustworthy, but try the best you can, and understand that you will fail.