Good sound is a result of experience, which is
...provided by making errors, due to poor judgment. There is no shortcut to good sound. The first reason is that "good" is highly subjective, and what is good to one is bad to another, and even then what is good to one at a particular time or on a particular recording is bad at another time or on a different recording.
All of us started out with high hopes, which were initially dashed, which then started us on lifelong quests to master sound recording. All of us have tapes of CDs from earlier years that make us cringe in retrospect.
"Good sound" is hard to get. It doesn't come as a plugin with the software (if it did most of us would expire of ennui).
Get your feet wet. Record stuff. Figure out what's lacking. Try some mixes. Read, both here and in places like Electronic Musician and Recording Magazine. Try new things.
Remember that most of the classic recorded sounds you have heard were recorded by engineers who had spent years in apprenticeships, learning the gear and techniques and interpersonal skills under persons of vast experience. In this modern, digital, age, we have to teach ourselves, but it's possible.
After all, it IS a lot of fun.
