This video helped me get myself sorted with obs and recording my daw audio. I did a few things differently but the intitial part of the video guides you through some stuff you need.
And something else, I forget at the moment. It is explained in the video. Its like an internal mixer.
I think he specifically routes it a certain way that I couldn’t get to work but but all the tools were there for me to figure it out afterwards. Which it wasn’t difficult. Just had to order things the way I liked them in the routing chain.
Not sure you have Ableton but I’m sure it’s similar.
Also, as far as the tutorial thing goes. If you end up recording your session, YouTube has a limit. Like 15 mins or so. I also would suggest a mic as I did one recently and it was meh because I tried doing text pop ups as the video went on. It was a “how to midi chop drums” thingy.
EDIT - It might help if i linked video:
I’b probably attempt more once I sort the mic portion.