Meta Quest

So a while back I accidentally added a password onto my headset that I ended up forgetting, I pressed on the forgot password in the vr headset and it told me to use the oculus app to fix it. I tried countless times to pair the app to my headset like it says but everytime the headset is off, on the app it shows all the settings I need but the headset needs to be on. But whenever I turn the headset on all those in app settings that I need disappear, so I thought there was a problem with the app because I can’t do anything without the app. So I deleted the app and downloaded it again to see if that would fix it, but I had the same problem I had a few years ago. I would try to log in with my Facebook account like normal, and I would get to the final part and it would say “you merged this account with Facebook. Please go back in log in with Facebook” I don’t know why it says that when I pressed all of the Facebook options. So I haven’t been able to get into the app for over a month now and I haven’t been able to use my 600$ headset once again. I just need help because I’ve tried everything and I just want to play vr.