So to support Andrea's position on this, if you read a lot of material on peak performance and elite mindsets, you'll find that the top performers don't beat themselves up. They reinforce what they did well and then just say "that needs some work" or "I'll fix that" to the stuff they didn't do well. That's how they remain confident.
One example I remember and always keep in mind is this one from Rickey Henderson which starts at 2:20 and ends at 3:17.
One example I remember and always keep in mind is this one from Rickey Henderson which starts at 2:20 and ends at 3:17.