Thinkin bout pronouns?

For some reason my brain does this thing where it gaslights me into thinking it's impossible for me to be anything a little odd, like how I find it weird when I tell people I'm autistic when I haven't been diagnosed. It's basically where it feels wrong to even think I'm something like for example possibly a system? Cause my brain just says "nope, can't be. Impossible. Nuh uh." and that makes it to where I also feel weird about using any neo/xenopronouns. I feel like I would be comfortable or even perfer using some, but I guess it's just because they're weird to say and I'm not used to them so I can't. It's also like how I'm not sure if I want to go by any different names or actually act like any fict characters I've themed my account on because it just feels weird? Maybe I should just let go of the cringe culture and do what I feel like, I dunno.