As you can see, English is spoken around the world, you can't do anything without it, so we can make sure that English is not a difficult language :)
In my country, Vietnam, we have an idiom "Phong ba bão táp không bằng ngữ pháp Việt Nam" means "Nothing is more difficult than Vietnamese grammar" :D I think it's right! I used to look down on it just because I thought I was a native until I study Vietnamese langluage in the university :) It's too difficult for me, espeacially the grammar. Suddenly I realise that I'm not good at it at all.
My teacher said : "Once you're not good at your native language, you are not able to teach another language for anyone
Working as an English translator or Teacher of English, I'm not sure :D , personally I think I need to improve my main language first, and take pride on it.
<em>>My teacher said : "Once you're not good at your native language, you are not able to teach another language to anyone"</em>
That statement is totally wrong. You do not have to be a master in a language to teach to another person. And knowing it perfectly doesn't make you automatically a good teacher.
And further, you do NOT need to learn language A first to study language B. You can do language A, B, C & D at the same time if you want.
I agree with you, for example , I am mechanical engineer and If ı dont have , I dont find job..
you can't do anything without it...omg, think well and then write.