We all spend our childhoods learning not to say mean things to other people, but it usually isn't until adulthood that we realize that saying mean things to and about ourselves can be even worse. The comments you make about yourself have a major effect on your self-confidence and ultimately on your ability to create the life you want for yourself.
One thing that drives me nuts as a coach is hearing people say, "I can't do that." And I hear it A LOT. Have you ever heard the saying, "Whether you think you can or think you can't, you're right"? Well, it's true... Whether it's telling yourself you're too dumb to go back to school, too young (or old!) to deserve the job you want, too busy to clean up your diet, or too weak to do strict push-ups or add 5 more pounds to the bar during a WOD; if you keep saying those things about yourself, then that's ultimately what will come true.
You're probably thinking, "That's lovely, but I can't positive-think myself to the top of a muscle-up..." And you're right. But you can still use positive language to describe the skills or strength that you haven't yet developed. Next time, instead of saying, "I can't do XYZ," try saying, "I'm still working on that, so today I'm going to scale." This easy change in how you talk about yourself will help your brain stay positive about your abilities, and ultimately will help your self-confidence grow, so that when you get the opportunity to push your limits in a WOD, you'll be ready!
Make up 1RM snatch or 10x3 Snatches @65%
20 min AMRAP
5 pull ups
10 push ups
15 air squats