David Goggins

Whoever you’re dealing with, your goal is to make them watch you achieve what they could never have done themselves.

Rather than focusing on bullshit you cannot change, imagine visualizing the things you can. Choose any obstacle in your way, or set a new goal, and visualize overcoming or achieving it. Before I engage in any challenging activity, I start by painting a picture of what my success looks and feels like. I’ll think about it every day and that feeling propels me forward when I’m training, competing, or taking on any task I choose.

You must also visualize the challenges that are likely to arise and determine how you will attack those problems when they do.