Proszę o sprawdzenie krótkiego listu

Proszę o sprawdzenie :) z góry dzięki!

Dear John,

I want to thank you a lot for your invite but unfortunately I can’t arrive because I promised my parents that I will spend this Easter with they. I know that Easter time in your country is great but you don’t know how we are spending this time in Poland. The most important thing in our country is tradition. Every year we meet in house of my parents, and we eat a lot of food like eggs, apple cake and typical polish dishes like bigos or mazurek. I was talking with my parents and we decided to invite you to us! I know you always want see my family. I can also show you my lovely city and this legendary Modlin about which I told you a lot of things. I hope that you will accept my invite and you will come to us for 2 weeks!

Well that’s all for now I hope you will write me back!
Best wishes,
XYZ

I want to thank you a lot for your 'invite' (moze lepiej invitation, choc to jest wiecej formalne), but unfortunately I can't 'arrive' COME because I promised my parents that I will spend this Easter with 'they' (they to oni- tutaj THEM. I know that Easter time in your country is great, (przecinek przed 'but') but you don't know how we 'are spending' SPEND this time in Poland.
Every year we meet in THE house of my parents, and we eat a lot of food 'like' (lepiej SUCH AS eggs, apple cake and typical polish dishes like bigos or mazurek.
I know you always wantED TO see my family.
I can also show you my lovely city and this legendary Modlin 'about' (nie w tym miejscu) which I told you a lot of things ABOUT. I hope that you will accept my
invite and THAT you will come to us for 2 weeks!
Well that's all for now I hope you will write 'me' (niepotr) back!

dzięki!