The audio quality is indeed lacking. The main issue of earlier videos was an overwhelming level of ambience, but it seems you dealt with it. However, clipping distortion is much worse! Most probably, the gain of mic preamp is set too high. In this case you need to lower it and compensate the level loss further in the processing chain.
Polarity inversion should make zero changes unless the sound is being mixed with other sounds. Here's the guide written specifically for such cases as yours, it covers most of the topics of voice recording: <https://indiscipline.github.io/post/voice-sound-reference>/ If you have any questions, feel free to ping me on [matrix](https://matrix.to/#/@zoom:matrix.org) or pop in straight to the [mixing room](https://matrix.to/#/#mixing:matrix.org) there. I'll be glad to go over any issues you're having. Please, don't neglect the sound quality, it's the first sign of professional-grade videos. And you'd like it to sound professional now, being sponsored for you work and all that, wouldn't you? ;)
