I was in your situation four months ago (first timer, Sphere I90). I recommend patience. It is likely that your audiologist will start you out at 80% of your prescription levels of gain to begin with - which is gradually increased automatically over the first few weeks to help your brain adapt to new inputs. Wear them as much of the day as you can to speed that process. Even so, you’ll likely find the sudden influx of higher frequencies to be jarring at first: everything from your shoes squeaking across the floor to the sound of your own voice to running water can seem harsh and tinny until your brain learns to ignore the information it doesn’t need for you to communicate. This can take several weeks or more, so: patience is a virtue, but your experience will improve. Those disconcerting effects receded within a couple of weeks for me, and my brain noticeably continued to adapt for several weeks more. Just don’t expect instant miracles or the aids to live up to the marketing hype at the very beginning of your experience.
In the early days I was constantly fiddling with the app, creating my own custom (and limited) updates of the settings available to the end-user, but as time went on and my brain adapted I increasingly found that the core Automatic settings - and the adjustments the aids themselves make based on your surroundings - were quite good for understanding speech in most situations and I’ve since deleted some of the “customized” settings I made in the initial weeks as no longer helpful.
Results and effectiveness can vary dramatically for things like streaming music or speech in loud noise depending on your specific “fitting” - the initial programming recommended for your specific hearing loss, the type of in-ear domes you’re given, the amount of outside world sound they let in, etc. Because the adjustability in the app is limited, be aware that your audiologist can do much, much more to fine tune how your hearing aids behave and improve your experience in situations that remain problematic for you - utilize their expertise and capabilities in follow-up visits after your brain’s initial adaptation. So, again, patience… don’t expect to instantly have the ears of a teenager, but don’t accept a disappointing experience without exhausting all the possibilities that the devices are capable of addressing through audiologist adjustment.
For me, it’s also important to remember that hearing aids are primarily designed to improve speech recognition - that’s the yardstick for measuring effectiveness, not necessarily the other things you use your ears for, like music (even though that experience can likely be improved too). Good luck!