GCSE students opening exam results

The transcript involves adjusting the microphone volume, restarting a process quickly, and expressing both an apology and confidence. The speaker acknowledges the need for better audio and restarts the process, then concludes with an apology and a statement of confidence.

What was the speaker's reaction to the microphone volume?

What does the speaker mean by 'All over again'?

What instruction does the speaker give when they say 'Stop faster'?

How does the speaker express their feelings of regret?

What does the speaker mean by 'I'm really good'?