Trouble with Cuting the word in my logo

[Jinfiltration]

I had just started learning photo.

Please advise me how do I cut this part away.

I want the selected part to be transparent so it will look nice on the projector screen

 

[IamSam]

Select the 3 layer.
Cmd/Cntrl + Click the blue circle layers thumbnail.

Make sure that the outside edge is also included in the selection.


With the 3 layer still selected, click the "add layer mask" icon located at the bottom of the layers panel.
If the image appears like this, the mask is backwards.


Just click on the mask, then hit Cmd/cntrl + I to invert the mask.
The image should look like this.

 

[Jinfiltration]

lamsam, thank you so much, you are really helpful.
those picture and words instruction are very clear to understand.
thank you once again.

problem solved. learned a new skill from you =)