There might be something right now that you are upset about, because you feel you've messed up. But you figure it's messing up is the only thing that will ever, ever, ever make you better at something. So if you mess up, you should accept that you were not perfect and you never will be and your mistake is what will allow you to be better in the next phase, but also it's a trap, because it's all a reflection of you. If you make a mistake and you don't react to it in the right way, you get caught with yourself when you try to tell yourself something to make you feel better towards that other person, you're done, you're done, you need to stick to you and take the lessons that you are meant to be getting from that mistake and not trying to justify that in your own brain.