Dobrý den Můj kamarád původem z Německa se začal učit Anglicky, ale má velké problémy, tak jsem mu napsal e-mail, ve kterém mu radím co zlepšit a podobně. Chtěl bych abyste se na něho podívali a po připádě opravili chyby . Velice Vám děkuji. 

Hi Lutz I’m sorry you are feeling bad, but please don’t worry about English. I am sure, you going to be better and better. Don’t give it up! I can help you and recommend you some advices, that should help you. When I came to grammar school I felt sometimes same as you. English was very difficult for me. But then I decided to not give it up and I started with some things that can help you too. Before I only used to watch films in Czech, but now only in English with subtitles. Try this too, I’m sure it will help you a lot. Also you can try to not watch to subtitles. This helped me very much. Try to remember a pronunciation and then repeat it, this is very useful. Also I think it’s a good idea to listen to music in English. This will help you with vocabulary and pronunciation aswell. I hope that this will help you. I’m looking forward for hearing about your English soon.

advice=mnž.číslo advice (nepoč.pod.jméno)

pak to you are going to be better and better (zde bych spíše použil, I am sure you will be better and better.

Nikdo se k tomu nemá, tak aspoň to, co vidím na první pohled. Takže moje návrhy:

1. you are gonna get better and better
2. Don't give up bez it.
3. some advice -nepoč.p.j
4. When I started attending grammar school I felt just as you do…namísto came
5. I decided not to
6. might/could/may help you too zní lépe než can
7. Also you can try to not watch to subtitles – You might also (want to) try not to watch subtitles.
8. repeat bych nahradil slovem imitate
9. looking forward to hearing
10. tato věta si taky zaslouží pozornost: Before I only used to watch films in Czech= stačilo by jen Before I just watched the movies in Czech.

Doplním pár věcí…

I can help you and recommend some advice to you
Don't give it up – Naprosto v pořádku
Try to remember the pronunciation
as well (s mezerou)
I hope (that) this helps you

1. Neříkám, že don't give it up nejde, ale don't give up je taky ok, vyjadřuje to v podstatě to samé a bylo to doporučení
2. I hope this will help you . Je taky naprosto OK, může tam být will nebo přítomný pro vyjádření budoucnosti
3. apropo s tou radou bych asi volil jednoduše give some advice to sb. s tím recommend mi to moc nezní