Is there a way to switch to internal mic on discord?

Look ive tried. Ive tried an app on appstore to switch it (that i was recommended) and it DOES work. Just not on discord. As soon as i go on a vc it switches to my Bluetooth microphone. I didnt have this problem on wired. But on bluetooth it automatically switches to bluetooth mic. And its terrible because the place where the mic is RIGHT behind my ear. So i have to scream to talk and even then its barely heard. So can anyone here suggest a third part app or some solution to this problem? I tried all i could