The Role of Feedback in Weightlifting Performance

I'm kind of wondering because you know when people watch themselves perform a task there can be like a value judgment placed on it. do you think so I guess in terms of the frequency there could be an over-alliance on an external source but that's just something else to look at and take feedback from. If someone is looking at their performance and they're visibly upset and they keep becoming upset because they're not able to perform perform the task or skill how that would influence like subsequent trials or just more generally their performance? You know if I were to watch it and I'm like wow this doesn't look as good as it feels then I take that into the next performance and then it