Let me Introduce myself a little bit

Hi everybody, I am a Vietnamese and My full name is Do Ngoc Quyen and I am Vietnamese. I was born and grew up and raised on the outskirts of Hanoi, a the capital of Vietnam. I am now studying Pharmacy at Hanoi Medical College.
When I was in grade 10 years old, <When you are 10 years old OR in 10th grade? PICK ONE!>

When I was in ________, my grandmother who I love most, died because she had the wrong diagnosis. And Since then I had a dream of becoming a pharmacist.

 If you said "In addition.." right after you said about your grandma's death. It makes NO SENSE! NO SUBJECT CONNECTION!

Something interesting about me~I love listening to English music especially Taylor Swift's songs and Tiffany Alvord's as well. Right now While I am writing this notebook entry, I am listening to a cover song of Tiffany "Beneath your beautiful." I think you should try if you did not yet. ;)
Ad of course I love learning English, too.

But I don't still improve my English Speaking and Writing yet.<MADE NO SENSE! BAD SENTENCE!>

:) So I am here and I need really really really need your help!