Hello my name is Emanuel Seiça, I'm from Portugal and have studio and after audio processing skills hard to match, I learned rom some really great studio engineers from big studios in Lisbon. The main problem with your recording is the presence of bass frequency sounds, and high "s" frequencies, this may be due to recording next to a machine like air conditioner, computers etc.. I can take the annoying bass frequencies by applying a filter, and remove the "s" sound by applying a "De-esser". I will Normalize and master the final mix so that your voice is enhanced and sounds perfectly clear and really nice to ear. If you want I can even put a jingle in the start and finish of each video. Contact me.
With best regards
Emanuel Seiça