谁能帮我选出这个文章里面的语法错误和用词错误

题目

谁能帮我选出这个文章里面的语法错误和用词错误
Hi everyone,This is my frist article,I want you help me mark my article,tell me which sentence have mistake ,which word have mistake
so ,start now
yoyo,i name is XXX,i am a student from high school,i was 14 years old ,now ,i am at new zealand,i want to learn english better,so,
i want to by a article help me learn it ,i have 8 years plan ,after 2 years ,i age to be 16,i think when i am 16 my english more better,
i have to go to work ,sure ,i job is not a full time job ,only part time job ,i can work and learn english together,i wii be keep working
part time to my 22 years old,if i have enough credit to university,i wii wait for my university finish ,and ,when i university
graduation,i wii go back to china ,mates,wait for me ,haha ,this article dont have whole steps,i skip too many steps,but ,i hope i can do these thing,thank you for you mark

答案

Yoyo,my name is XXX,i am a student from xxx high school,i was 14 years old .Now ,i am in new zealand,i want to learn more english ,so,
i want to write a article to help me to learn it ,i have a 8 years plan ,after 2 years ,my age will be 16,i think when i am 16 my english had to be more better,
i have to go to work ,for sure ,my job is not a full time job ,it's only a part time job ,i can work and learn english together,i will keep on working
part time to my 22 years old,if i have enough credit to university,i will wait till university finish ,and ,when i'm in university
graduation,i will go back to china .Mates,wait for me ,haha ,this article don't have whole steps,i skip too many steps,but ,i hope i can do these things,thank you for you mark