This is probably an unlocked memory,....
I am not a psychologist BUT i am sure that the dice is you....I can only interpet it like this...
Plus, the size of the dice might be the size of your confidence (despite the fact that u felt negatively...small + scared)

I think that in order to understand the dream (its actually your ownself, in these kind of dreams - whereas the LD's are a lot more than that...) you have to ask yourself about the relationship with your parents....