For sure, recording here can be tricky because we are both the talent and the engineer, though obviously just getting a sound is not too hard. In my humble opinion, learning a little bit the fundamentals of sound and general concepts of manipulation greatly helps in the use of the tools in any software, be it Audacity or anything else, which can maximize the recording quality.
John Hess at Filmmaker IQ does such a good job explaining things and gives some good overviews on sound, post processing/mastering tools and recording, though geared for recording dialogue for video, much of it applicable to recording speech in general
Here is his post processing overview talking about equalization, compression, de-noise, etc.:
https://youtu.be/r4791OLkRrs
Generally I use some mild equalization first, to compensate for room and equipment coloring of sound. As part of this, rolling off low frequencies below 100Hz seems to take care of any dc offset issue as well. John says he boosts 160Hz but I find that my small room already accentuates this frequency and have to notch between around 160-200Hz to get rid of some “mud.”
As far as compression, i usually use a little mild, straight compression without any auto make-up gain and then amplify in the expander to keep the noise floor down. John likes the multiband compressor (essentially combing comp and eq) but even after following a tutororial with recommending settings for voice I could not get the sound how I liked it as well as with eq and straight compression (so this may require more experience).
Here is his overview on the science of sound which may also be of help:
https://youtu.be/ZbUTyMC8_X8
And finally, recording sound, though geared for film, good tips in recording levels and mic placement, etc.:
https://youtu.be/S9cP1WHL0Zo
Hope this helps. Bottom line is play around, experiment, have fun and make something great!