Insecurities after coming out

Hey y'all. Lately, I've been filled with doubt and I feel like my brain is stopping to work and I really need to vent. I came out to my friends a week ago and feel like my insecurities have been pushing me away from them.

I needed to come out to them because it was stressing me so much, it was affecting my daily life, I couldn't do anything. But now that I have come out? I'm stressing again. I keep overthinking if I did the right decision, overthinking my identity. It felt so solid before coming out, I was sure I was transmasc but my brain keeps making me doubt it.

Not question, doubt it. I don't even know questions to ask anymore. I get dysphoria and get happy thinking about myself in the masculine, feel more comfortable being seen as a guy. I don't know why I'm still stressing so much about it.

... I do know. I think asking them to refer to me with he/him is unfair. I'm pre-everything and can't really present masculine at the moment, so I think it's unfair to them. I know this is bs and a harmful way of thinking, and I only do it to myself, I don't care what someone's looks are, if they tell me they're a guy, they are a guy ya know?

So why can't I apply the same to myself?

And it doesn't help that my first language is so gendered (Portuguese). Basically, every time you talk you're going to be using gendered language to yourself or others, and I'm still embarrassed of using he/him because of the "unfair" thing, and This is making me doubt even more stuff.

I'm just tired.