How well do you know Rhianna Eriksen?

How well do you know Rhianna Eriksen? I bet that you will fail! mwah ha ha

1 What grade did I skip?
2 What is my 'siblings' name?
3 What stationary item do I collect?
4 What are my parents names?
5 On my 7th birthday party I had 1000 _______?
6 What Instruments do I play? (pick the one that I am best at)
7 What is my middle name?