UR44 Loopback - How to get it working

Hi There
I need some of your advice users. Basically I am using Cubase 10 and UR28M. My plan is to create some Cubase tutorial using OBS Studio.
I have activated loopback function but I can’t figure out how to get Cubase output and my microphone to work together so I can successfully create tuts.
I am so frustrated as I cannot reach a final solution.

Is there anyone here able to help me out?

Thank you