Hi can you please help to correct this writing Dear Anna, It's been a long time since we spoke .how's it going,I hope you're doing well. I'm writing this email

Hi can you please help to correct this writing
Dear Anna,
It's been a long time since we spoke .how's it going,I hope you're doing well. I'm writing this email to you to tell you about a birthday party I have attended last month. It was my friend's birthday. She celebrated this occasion at her house. I was so excited to share her this special day so for this reason ,I dressed my best clothes and I bought some gifts for her.After ,I went with my family to her house,when we arrived they welcomed us warmly. They decorated their house with flowers and ballons. Her mother prepared a delicious cake and some drinks and her father gave her a new smartphone. After that,we sang a birthday song when she cut her birthday cake .later,we congratulated her and wished her a happy life with her family. It was one of my best birthday I have ever attended.
I hope you answer me soon.
Sincerely.