hey :) today i will work again on your riff .
and yes its very hard to lern bare chords ... and most suckie thing is that they sounds best .
like in my case , i remeber i was serching songs to play without them and allmost all best songs had them , so ye feels bad i know :) but now im fine . just try try n try , youll get it ! i suges to train like that : D - F , E - F , C - F ,or whaterver , but start from F i think , coz hardest press needed.