#1 you have a mic that requires PHANTOM POWER... those are some of the most sensitive mics in the world... they pick up everything - even you swallowing drinks while playing... not good.... So Most expensive is not always best - you need a less sensitive mic... keep that phantom power mic for music na tol... just use a standard headset mic for gaming - its less sensitive and made for that purpose.
I know it might sounds crazy. But just fixed a similar issues. I'm using a razor mouse. And somehow i had to install razor synapse. Go in lightning tabs and disable the light on my mouse. Background sounds fixed on mic.
Download a free software called VOICEMEETER. It gives you the ability to filter out certain frequencies in realtime. Most of the time its just AC or fans, which are easy to filter out using this software.
I downloaded that app but it’s kinda fighting against YouTube tbh it was on then I was watching tutorials then suddenly vid won’t load refresh it nothing happens closed the program and YouTube play the vid