A simple conversation

Hi guys, could you please read and modify ?
I would like to know Natural dialogue
thank you :}



Q-1 Can you swim?
A-1 Yes I can.  I'm probably the best out of all my friends.
the reason why I can swim so well is because when I was child, I learned how to swim from my daddy
at the public swimming pool

Q-2 How good are you at cooking?
A-2 I think I'm a good cook I used to work at a Japanese restaurant about 2 years ago. People who ate food that I cooked always emptied their bowls. 

I'm still learning about cooking
through the Internet.

Q-3 Are you good at painting?
A-3 Well, I don't have painting skill. it's difficult for me, if I painted something, a lot of people may be making fun of how to bad I am, some kids are better than me

Q-4 Do you know how to play any musical instruments?
A-4 I can play the piano just a little bit, when I was young my sister has taught me about how to play the piano
she majored in piano. but sometimes she scolded me, she said "why do you keep missing the beat?!"
After that I cried.

Your English is good! I corrected grammar but did correct things such as commas/punctuation. Let me know if you have any questions about what I fixed!