We will need some free third party VST plugins to bring out the professional sound. In this video we go through what they are, and where to get them.
I would NOT recommend the in-built noise gate (if you have a quiet environment its fine), or the in-built compressor plugin (except as used in video #7).
There may be other options out there, but the ReaPlugs I have used for years and can absolutely recommend without hesitation.