Your other message thread has the settings that Trebor used on your sample and a discussion of how to proceed.
https://forum.audacityteam.org/t/is-this-acx-sample-up-to-technical-standard-please/58145/1
I’m not the wizard editor. We should wait for one of the other elves.
The object of having a quiet, echo-free room (your “studio”) is so you can make clean recordings and not have to struggle and waste time with suppressing noises in your recording. Similarly, you should use a “clean” microphone that doesn’t cause sound damage and extra post-production cleanup and work.
You my have noticed that I don’t have a favorite microphone or recommendation. Given all the problems people have with "home’ microphones, I think you should be recording on a stand-alone sound recorder and not use the computer at all.
That’s a Zoom H1n and an older Zoom H4.
Other posters have had good results with H2n, H4n and even H6 recorders.
Koz