Cut yourself some slack
Humans are incredibly complex. By the time you figure yourself out to a fair degree, a lot (if not most) of your life’s crucial moments are done with. And we’re talking about understanding your wants and needs and communicating them to others, which requires you to understand others, too, to some degree.
Now, in that setting, there’s bound to be errors, fatal ones, in some cases. But it still doesn’t change the fact that we’re designed to seek pleasure and relief from pain. So, we run to the positive emotions, to the degree that we can, that is. And we constantly compare: this item and that one, this girl and that one, ourselves and others, our present selves and past selves, the list is endless.
Even from the exhaustion there can be misunderstandings. Sometimes you need to cut yourself and others some slack for doing not terrible.