Hi, RIO!

I've playing microstakes PLO for 4 month, 200k hands about 7/100bb. I haven't any serious NLHE background, played ~100k hands at full ring cash tables, some freerolls and sng's. I really like to play PLO and I want to develop as a player, so I need your advice. Should I start to learn NLHE or just grind PLO? Is it fine to start from this complicated game?