Is it a bad idea for a guy to write a female character in first person

I dont know but im doing it. I just hope I dont come off sounding stupid. I've written male character leads and thats fine. Male to female transgender characters is iffy but I figure if they spent most of their lives being male then its ok if they come off that way during the transition. Perhaps even a forcibly transformed male to female. They will still keep their male identity even as females. But, im questioning myself in this, a form genetic woman, born and raised as a girl. Im trying to write in first person as her so Im asking, how do I not sound stupid. Or like a guy attempting it, badly. Ive read articles from editors that pointed out a few mistakes men make when trying this