How to make sure wall ends? (Beginner)

Hey!

I’n new to Sketchup.

Every-time I finish to build a wall using the “Push/pull” tool and I continue using this tool it just extend the wall and not starting a new wall from this point.
Can you please advise?

Thank you!
Meni

Post only once please with the same question.
Hit the [Ctrl] key when using P/P tool to create leave the original face behind when extending the wall.

Tapping Ctrl is used throughout SU as modifier to make a Copy.
During PP it forces a face to be created right where you tap Ctrl, ending the wall, you can then continue the PP and create more wall.
During Move, it changes Move to Copy

Does the same with Rotate. Makes rotated copies.