From your point of view, what are the main problems that Non-native speakers face?

I would like to talk about the main problem I face. Often I will write down a sentence thinking it means exactly what I want to say, but then find out that the words don’t actually mean what I think.

My thoughts will be fluent and coherent when I conceive of them in my native Arabic. But I suddenly feel as if their logic is lost once translated into English. It is hard to convey the original thought, because so much effort must first be put into learning how to translate every idea.

Finally, if you are not a native speaker, you cannot always express your thoughts as you wish to. How difficult it must be to reach a “eureka” moment but feel that the words are inadequate to describe it; what a challenge it is to articulate ideas in a language that is not your own :)))