There are ways of dealing with a noisy room. This is a kitchen table sound studio.
https://forum.audacityteam.org/t/too-compressed-rejection/52825/22
In case the noise is coming up through the floor, you can try book/towel isolation.
An actual book is recommended. If you don’t have any of those any more, the local library frequently has $2 book sales and my neighborhood has “Free Book” pixie houses along the street.
These microphones are usually at their worst behavior with the volume all the way down. Try a test with the volume at least at 3/4 up. If you’re using noise reduction, you should be able to use less of it.
Yeti microphones are in the sweet spot of being expensive enough to deliver reasonable voice quality, but too cheap to have USB processing and filtering. This can give you the “Yeti Curse” where USB noises make it into the sound.
http://kozco.com/tech/audacity/clips/USBMicrophoneWhineClip.mp3
So this could be coming from the computer and is a USB error. Can you change the USB connection—does your computer have more than one?
Koz