Unfortunately without intending to sound mean it’s “back to school”…
You have to try to learn and understand your tools to be able to deliver what is needed.
As a film and TV re-recording mixer, I’d get a bit scared if the person delivering a music mix didn’t know how to mix or how the program should be set up to deliver what I need.
So either you need to employ a mix engineer, or learn your tools. Signal flow and bussing is the very basic of sound know how that everyone working professionally with sound just have to understand IMHO.
Spend the time to do it properly now, or it will come to bite you in your backside in no time…