Define what you mean by "Experientially."You still have the same male chromosomes you were born with, which means you have never experienced female and you never will. You do not experientially know what it is like to experience being a female. So your idea that you are female or feel like one is a fantasy because you cannot scientifically know what it is like to experientially be female. Your idea of female is just an imagination.
What you are trying isn't being female. It's being trans. If you are fine with that, ok, but don't pretend it's a real gender because it's not.
Everyone is cisgendered. The word itself is offensive because it's just a means to promote a lie.
Harsh but seriously, gender dysphoria like most mental disorders can be induced via manipulation and promotion, and that's what is happening.
Gender is mostly an illusion, kind of a social construct. And, it's definitely mostly aesthetic. So, if you "appear" to be female, you're likely to have a female experience around other people. It depends on how well you are able to "appear" to be female. You can't become pregnant, menstruate or produce sperm, but otherwise... it's pretty close.
When we're in the womb, we are all female at the beginning. All mammalian embryos are female for the first month or two. Look at your nipples, sweetie.