Pls help! What settings to change to listen while recording?

It’s very simple. I used to be able to record just my voice without recording what I am listening to in the headphones while recording. The new version has been driving me insane. I just can’t figure out what settings to change. Please help!

Do you have Windows set so you can record YouTube sound and other on-line content? That’s the setting you need to change. That used to be called “record everything playing on the computer.” So you should follow these instructions backwards.