fortunately and unfortunately

It was my birtday last week.
unfortunately, my parents went to London.
fortunately, my eldest sister organized a birthday party for me.
unfortunately, no one attend to my party.
fortunately, my parents came back from London just want to give me a surprise.
unfortunately, the electric was black out.
fortunately, I had a candle.
unfortunately, the candle was very short.
fortunately, my sister came from kitchen and brought a cake with the candle on it.