Responses
I think she will have a better life there as well. Since it was mentioned that the main reason the 2 camillas suffered is due to soul switching. Their souls didn't belong to each others previous world. That's the reason both families seems to have a large gap of familial feelings towards the 2 camillas. And since the souls were out back to their original places, everything will be put back on track as well. The other camilla in the modern world will do better and have the life she wants.

...how would the other Camilla would feel if she saw this (I mean the current Earth Camilla). On Earth, no one is explaining anything to her, what's really happening. She also didn't know the reason why people didn't like her in the other world. ╥﹏╥
What if the talent of acting was only given to the real Camilla? I hope she's living well now. She just went back to her real world, and that doesn't mean she will be 'lucky'. It would just meant that those bad influence would no longer be there, but doesn't mean her life would be easier.