Both my parents are writers. Both are also professors. My mother is bilingual, my father knows a bit of Greek and Latin. What I learned from them?
Well, from my father: erudition is BORING. This need to come across as "smart" to others is absolute garbage. You're better served just being your weird little self and letting others believe what they want. Because in the end? Others will do that anyway.
From my mother: just because you aren't a 'native speaker', it doesn't mean your English is bad. Ok, I might want to check my grammar and spelling (and of course, I make mistakes all the time and my wording can be quite bad), but I'm not 'second class' just because of it. Native speakers do horrible mistakes all the time, and they aren't 'superior' to me just because 'they were born in the language I try to speak.' Hell no. The English I use is just a variant. And it has potential to become something precious to others, if polished. (But I admit I don't care much to polish my tumblr writings... as in, polishing means rereading at least 5 times, rewriting stuff, etc.)
My childhood was really weird, but ended up on a good vibe. My mother read stories to me all the time, I loved to flip the pages of a Barsa Encyclopedia book, but mostly, I tried to create silly recipes on the kitchen, or played with my toys for hours, or just stared at the ceiling. (No internet or cellphones, I'm that old!). The main emotion was boredom, so I tried to imagine stuff all the time, just to keep my racing thoughts on something healthy. I even started imagining fanfiction to lull me to sleep (it was Saint Seiya btw). Each night I'd write the newest chapter on my 'mental fic', and it got more and more ridiculous as the months went on. Good times.
Another thing: seeing my parents write their books. The sheer dedication, the hours spent writing it without stopping, the creativity flowing from them in tidal waves, the breakfast and lunch and dinners spent talking about the newest breakthrough on their books... yeah that made me what I am today. While I firmly believe that anyone can be a writer and their background means shit, for me, I wouldn't be a writer today if not by it.