Just figure out what you want to do. Its not like Windows where you need to run scrub scripts, or turn specific things on or off. It’s very subjective.
Examples:
are you in a laptop? You want specific tools for battery and performance tuning.
are you gaming?
are you working audio or video?
Just edit your comment and throw a few things out that you’d like to do, and you’ll get a much more complete list of suggestions and tips.