After a few weeks of tedium, I have not only been able to tweak my microphone into something I'm at least proud of, but have also cured my issues of audio being too quiet due to YouTube's audio normalization. Today is truly a good day!
This now means I can finally start doing commentary and about time! I've been holding off on a video idea mainly due to motivation reasons, but now I can start proper! This does probably mean I might redo the 'script' from scratch because my opinions on the game have changed a little.
At the very least, I can continue knowing that I will eventually be able to get rid of 17 hours worth of Mario Kart footage (even if I realised less than 20 minutes will actually be used :/ )