Believing that you must do something perfectly is a recipe for stress, and you'll associate that stress with the task and thus condition yourself to avoid it

I believe we can proactively choose to believe whatever we want instead of merely letting our beliefs coalesce as reactions to events.

Hard work pays off. When someone tells you otherwise, beware the sales pitch for something "fast and easy" that's about to come next. The greater your capacity for hard work, the more rewards fall within your grasp. The deeper you can dig, the more treasure you can potentially find.

One of the fundamental choices you face in every encounter is the choice to approach or avoid.

The exact process you use to build courage isn't important. What's important is that you consciously do it. Just as your muscles will atrophy if you don't regularly stress them, your courage will atrophy if you don't consistently challenge yourself to face down your fears. In the absence of this kind of conscious conditioning, you'll automatically become weak in both body and mind. If you aren't regularly exercising your courage, then you are strengthening your fear by default; there is no middle ground.

If you aren't working on your goals, you aren't working. You're just wasting time.

Achieving meaningful goals requires that you commit your entire ass, not just one cheek.