I don’t find it too hard , what I do is to put the rice paper in big frying pan with warm water , just enough that is starts to soften . drape it onto a big plate so it will stick to the plate.

Then place the filling in the middle and lift one corner from the plate and fold over. Repeat with the other corners , the rice paper will stick to itself to seal the thing.

Bonus: briefly fry the whole thing on all sides