一定要改吗？

 

Done this before.  It is easy to change name.  but life will become complicated after.  So make sure this is sth you have to do.

 

You can go to local library to borrow as follows.

 

http://www.nolo.com/products/change-your-name-in-california-kit-pr269.html

 

and call county office for detail procedures.

 

QQH me should you need further help.