As the saying goes: you can have anything you want, as long as you’re willing to pay the price. - Josh Kaufman

Always focus the majority of your efforts on serving your ideal customers. Your ideal customers buy early, buy often, spend the most, spread the word, and are willing to pay a premium for the value you provide. The more ideal customers you can attract, the better your business.

Living organisms — including human beings — are very complex Perceptual Control systems: we act in ways to keep our perceptions of the world within acceptable boundaries. We don’t put on a coat because cold weather forces us to — we put on a coat because we feel cold and we don’t want to feel cold. If the light entering our eyes is too bright, we find shade, pull down the blinds on the windows, or put on sunglasses — the action controls the perception, and the action we take depends on the Environment we find ourselves in at the time.

Understanding your Locus of Control is being able to separate what you can control (or strongly influence) from what you can't. Trying to control things that aren't under your control is a recipe for eternal frustration