Recording on new track includes prior tracks

when recording guitar on track2, while listening to track 1, track 2 includes track1.
Same for track 3: when recording voice while listening to track 1 and 2, track 3 includes tracks 1 and 2.
How to prevent this without muting my headphone input for prior tracks? I need to hear them.
Thanks a lot for your help!

I use WIndows 10 computer, Behringer UB802 mixer, connected with tape out to my sound card Realtek.
I use line out connection of the Realtek soundcard of my computer to connect my headphone.
Both connections with tulip

Make sure to select line-in as your [u]Recording Device[/u]. Don’t choose “loopback” or “stereo mix”.