Hi Ice794,
I'm Rodrigo, Independent Advisor and I will help you.
To find your mic gain setting right-click the volume icon > Sounds > Recording tab > double click your mic device (if it is connected to the 3.5mm audio connector maybe you will see it as Realtek High Definition audio, if it is connected to USB you will see it as Jounivo.) > On the Levels tab you can adjust the mic gain.
If you can't see these options, please send a screenshot of the window