People who started learning a second language, how has it made you aware how broken English is ?

I know a few languages, English not being the first one. But I too have learned that not only might English be broken, but so might my mental and cultural skills with it. Though I figure priority one is whether what I say follows grammatical rules. Political manifestos, which this place is all too familiar with, don't even have that, yet people seem to understand what they're saying if people are going around saying how wise they are.