RIO Help!

Villain Range Construction and elimination is a gaping hole in my otherwise solid game. Need advice from successful range construction players on the best way to cement this process in my game.

What has worked for you?
- software (in or out of play)
- specific videos (the ones on rio are good but not getting me to cement this into my game)
- specific thought process or checklist in play
- ???

I just mentally can't get over deferring back to my own two cards the majority of the time. I'm willing to do whatever it takes but to date what I've tried doesn't stick. In sure I'm not the only one. Thanks for any advice or experience you can share.