The best thing you can do is to trust yourself and others to be untrustworthy. It’s the only authentic approach toward building trust.
To prove your own trustworthiness, you must first trust yourself. But that’s what you’re trying to prove. That’s inconsistent.
Everyone knows each person needs to change themselves. But we can’t do that entirely because the same bastard that needs to be reformed is the same bastard that is doing the reforming.