steambc,

You frustration / confusion is totally understandable. BIAB is a complex piece of software and a lot of complexity really comes from the difficult goal that the program is trying to achieve: help you create good-sounding music (and doing it at home, with no other professional musicians or producers around).
Thus, the main advice is - unfortunately - patience!
You really should follow MarioD's advice and watch the video tutorials. BTW, listen to some of his music on the Showcase - it is great (and it was made with a lot of help from BIAB)!

As a bit of a more practical advice on how to create your own workflow, think about this (assuming you are writing your own song or creating your own arrangement of a piece of music). I also assume that you have already created the basic melodic and harmonic structure for your song:

1. Decide which musical genre will best showcase the ideas you want your song to convey.
2. Decide what tempo best matches the musical and lyrical contents of your song.
3. Only then, use BIAB to help you try your song in several styles from your chosen genre.
4. Not all parts will be perfect (matching your vision), so you can then substitute individual tracks (this where reading the manual and watching the videos will pay off) for one, several or all parts of your arrangement until you have the basic elements of the song in place.
5. Then (and this is only my approach, other folks do things differently) transfer your work into a DAW (RB or one of your choice) and edit / change /add / delete, etc. different parts of your song until you have all the recorded parts done to your heart's desire.
6. Now you're off to mixing and then mastering your masterpiece, but this is a completely separate story...

Hope that this helps.

Best Regards,
Oleg.