Audacity for audio. Plain and simple. I've used it for years, I tried switching to adobe audition but couldn't do it. So much is behind features that either most people wont use or under names no one would've thought of... plus its a monthly sub. Audacity is free, tons of documentation and plugins to help.
Are you using a dedicated mic? What about video editing software?
Biggest thing from what I saw from your channel trailer video is that the music was coming from (Correct me if I'm wrong) your computer, and that in it's self makes the video sound "Cheap" some advice from me would be download audacity and davinci resolve (Video editor) and use the multi track audio to overlay the music, itll help tons! plus audacity will help you with cleaning up your audio, super easy, just watch some tutorials and youre golden.