Resentment is a bitter master, but it's very instructive. If you're resentful, there's only two real reasons. One is you should grow the hell up and … - Jordan Peterson

What you aim at determines what you see.

You talk. There is no such thing as “a talk,” unless it’s canned, and it shouldn’t be. There is also no “audience.” There are individuals, who need to be included in the conversation. A well-practised and competent public speaker addresses a single, identifiable person, watches that individual nod, shake his head, frown, or look confused, and responds appropriately and directly to those gestures and expressions. Then, after a few phrases, rounding out some idea, he switches to another audience member, and does the same thing.

Treat yourself like someone you are responsible for helping.