Dude!
I know how you feel! I think chord placement is a life-long learning process. You never stop learning about placement. As society changes, our idea of what sounds good changes, so it creates new chord progressions or chord placements. Anyway...What I did to open my ear a little to this stuff was practice my diatonic progressions. In the key of C: If I normally played a C in the bass and an F chord in my right hand, I'd move the F to a Gmajor or Aminor. I'd do the same with the bass. If I normally played a B in the bass with a Dmin chord, then I'd try using the same pattern starting on a different note in the bass. It produced some weird sounds, but some of them gave me a eureka moment.