I'm told that in terms of technique and all that, classical guitar is almost like a completely different instrument.
And if that holds, then I'd advise to act as if the only saddle you know is the one people sit on while riding horses(in other words, act a complete guitar dumb ass) and go thro' everything a-new.
That way you should learn. I fyou meet stuff you already know, then you should easily go past it. and when you get to stuff you don't know, then you'll learn it.
Plus I imagine you could always pick new things from the seemingly basic stuff.
It's OK to re-learn "Row Row Row Your Boat."!!