How can I make this sentence correct and natural?
She usually celebrates her birthday with her relatives, but once, when she was 10 years old, her friends gave her a surprise with having decorated her room specially for her birthday.

Question

Answer

She usually celebrates her birthday with her family.  But, once, when she was 10 years old, her friends surprised her by decorating her room for her birthday.

Answer

She usually celebrates her birthday with her relatives, but once, when she was 10 years old, her friends gave her a surprise by decorating  her room specially for her birthday.