Well 50nl is most certainly tougher than 1-2 live. Live players tend to be more cally in general, that doesn't mean bluffing
is impossible, but unless you see a good spot, I would avoid just splashing around. If your going to play a lag style your going to be a lot more vulnerable to short term variance, especially live. If you really feel like it is a struggle, post some of the more complicated hands you have been in with and see where you get suggestions. Overall this question is incredibly vague and hard to give you a fully accurate assessment on what to change.