PROBLEMS RECORDING A SECOND TRACK

Hello,

I´m new to Cubase and I have a specific problem recording multiple tracks:

I record the first track (rhythm guitar).

Then I record a second track (lead guitar)

When I record the second track, I select this second track and then click on the record button at the top menu, and I automatically listen to the first track so that I can record the lead guitar (second track) correctly, which is fine.

The problem is that the first track IS ALWAYS RECORDED INTO THE SECOND TRACK. For example, I can hear the rhythm guitar (first track) and the lead guitar (second track) even if I delete the first track (rhythm guitar). This doesn´t allow me to manipulate each track separately.

Please, anyone help me with this as I really need to fix this in order to finish a college project.

P.S I have the same problem when I use the cubase metronome.