Help with Audacity & Behringer Xenyx 302 USB?

I have a new Behringer Xenyx 302 USB mixer with mic connected to my Windows laptop, and I am wanting to record my voice AND music that is being played through the laptop, through the mixer into Audacity. I can hear the music from the laptop and my voice through the headphones connected to the mixer, but Audacity will only record my voice. What am I doing wrong? Thanks!

You may have to play the backing track out of your soundcard, and into a line-input on the mixer.

But, you may not want to re-record the backing track or make a "permanent’ mix… If you mix in “post production” (after recording) you can adjust balance between the voice & music and if you don’t like it, you can re-mix it.

If you have two (or more) tracks open in Audacity (which you can do by “importing” rather than “opening” the 2nd track) they will mix when played or when exported.

In some ways, mixing with Audacity isn’t as easy as using an analog mixer and you have to watch-out for clipping (distortion) in the mix because there is no master level like a hardware mixer, but it’s usually “better”.

Thank you. Right now I would just be satisfied to get the track that is playing on the computer, and successfully coming through the headphones on the mixer, to record on Audacity. I can hear it, it just won’t register with Audacity and IDK what to adjust. The sound playing is through an online white noise generator and not downloadable, so I was wanting to record voice & sound simultaneously, which is the whole reason I bought the setup. So bummed I can’t figure this out! #sad