I understand the hesitation re: MDZS/CQL. I was 'in' that fandom for quite a while before I got up the courage to post anything (admittedly, a pseudonym did not occur to me...), though that was partly because it was also my first cfandom and I went through a few stages of 'can I even write fic for a Chinese series' that took me several months to work through. (Eventually, I landed on yes, with the caveat that I do my research where possible, but I'm still not entirely sanguine about it because sometimes there're things you don't realise you need to research...)