I'm currently a losing player at online NLHE due to tilt, bankroll, and fundamental flaws in my game.  Conversely I'm a winning live player and have experienced fairly consistent success in casinos.  And maybe i'm a "losing player" in both and I just have more volume in online and experienced positive variance live, who knows.

My question is should I wait till I become a winning player and have a fundamentally sound online game in NLHE to then learn PLO?  Or should I try to learn PLO and have that take away from my quest of mastering NLHE?

I wonder if maybe I will find my niche/strength in PLO?  On the other hand I know that PLO has much higher variance and bankroll requirements and those are 2 of my major weaknesses when it comes to online NLHE.  Any suggestions or advice would be greatly appreciated by all.  Good luck at the tables!