The trick here is to set up a few patches and just use those.
And, aside from the menus (it can help to use a PC based editor) this should be as easy as setting up a tone on a traditional amp.
The trick is to start with an empty patch, just add an amp model (maybe a cabinet and mic too) and then focus on getting a sound you like from that amp and cabinet.
That will be using the gain control and the EQ controls, just as on a conventional amp.
If you do this, you should be able to come up with a handful of tones you like which you can then store as patches and recall for future use (and you donāt need the PC any more).
The only other challenge with a modelling system is you have a selection of amp models to choose from, whereas with a physical amp you only have one (unless you have more than one physical amp).
IMO thatās a case of picking one that you vaguely like the sound of, and using that as your base tone.
Typically you would want a clean (maybe edge of breakup) tone, a slightly higher gain crunch tone, and a lead tone which is much higher gain.
From there, if you wanted, you could add simple boost or distortion pedals to the patch. But the trick is to add one thing at a time and play with it a bit, and work out how to use it (and if you need it) before adding anything else.
Itās pretty much what you would do with a physical amp and pedals, except you donāt have to go to the shop and buy them, cable them up, attach them to power, etc.
Cheers,
Keith