I think it is probably good to play NL. there's nothing wrong with limit, but I think NL is more fun, your winrate is probably higher for any given bankroll, and you just gotta pick one. PL is similar to NL, might as well just play NL.
Next step, what is your bankroll? I would recommend NL cash games, but what stakes will be determined by your bankroll.
The thing that stands out most to me, is that you've consistently lost at all three types. A general awareness of strategy should be enough to beat any type of low stakes holdem game, so if I were you, I would start reading up on low stakes no limit strategy. It might help if you were to describe your general approach to playing? what do you raise, do you call a lot, do you bluff a lot, etc?