If you consistently practice this way, the way champions do, you'll soon find your performances improving. You will perform your best when your concentration is on your tricks, one move at a time. Gymnasts who get distracted with this kind of future focus almost always perform tight and feel crumby. Stay in the now as you perform concentrating on what you are doing, while you are doing it. In order to perform as best as you can you've got to have your mind in the right place.
Concentration is the key mental skill to gymnastics excellence and mental toughness.
Quickly and gently bring yourself back to a proper focus. This is the heart of championship concentration. But just as important, they let it go quickly. In other words, they don't dwell on the past. Learn to recognize when your mind's in the past and quickly, and gently, let it go.