Englisch Hilfe: Brief korrigieren, bitte

Hallo ich muss Morgen eine wichtige Hausaufgabe in Englisch abgeben. Leider bin ich nicht so gut darin und meine Eltern auch nicht deswegen hoffe ich das mir hier jemand meinen Text korrigieren kann. 

Die Aufgabe war es einen Brief über seine letzten Ferien in Australien zu schreiben. Also..
Dear Susan,
In my last Holiday I was with my whole Family in Australia. It was really the best holiday for a long time. On the first day we took a city break in Sydney. There we passed the famous Opera Houser and the Royal Botanic Gardens and then wo drove over the Harbour Bridge. In the remaining days we made a trip around the continent. First we flew to south Australia. Here we saw many different animals. Then we came to western Australia. Everything here is pretty far apart, so I spent most of my time at the beach. in northern territory we visited the Uluru. it was so wonderful. Unhappily we had to fly back home again.
How were your Holidays?
Were you in another Country, too?
I hope to hear from you soon.
Bye, Nina