If a woman proclaims "I am a male", will she become obligated to observe all mitzvos which men are obligated, because of שוייה לנפשה חתיכה דאיסורא?

Question

If a woman proclaims "I am a male, (and I underwent gender-change surgery)", will she become obligated to observe all mitzvos which men are obligated, because of שוייה לנפשה חתיכה דאיסורא - She rendered herself an entity of prohibition?

[Note: If someone finds a source that says that שוייה לנפשה חתיכה דאיסורא only applies to issurim, (prohibitions), then the question can apply to whether she must keep the issurim which men are obligated. ex. not cutting off peyos, not becoming tamei if she's an offspring of a cohen].

Answer 1

The statement "I am a man" is either:

1. a potential issur Gavra (acceptance upon oneself), in which case there is no chaticha deissura which is an Issue cheftza (article that is designated to become forbidden), rather a Shavua see note.* Also See ran Nedarim 2a.

   2. An admission הודאת בעל דין כמאה עדים דמי,but since it contradicts reality and has no effect other than a false statement in the past. see Yevamos 88a-b where it says clearly: eidus that a husband is dead cannot stop her children from another marriage being Mamzer if the husband shows up.

If this is considered option 2 an admission, then it is a Shavuas Shav (false oath) because she is saying "I am a man" and she is a woman not a man.
This is because the only ever recorded Chazal that mentions a man turning into a woman is when Leah was pregnant a 7th time and Hashem turned the male fetus into a female i.e dina see Rashi Bereishis 30,21 but that was a miracle and done by G-d Himself, not by human surgery c"v.

If this is option 1 an acceptance for the future to do Mitzvos of a man, it is a Yad sheeino Mochiach.
Since putting on male clothing is forbidden the very fact that she is intending on being a mumar (reccuring transgresser) by completely disregarding one of G-ds Mitzva shows how not intent on keeping extra Mitzvos she is, so this is a Yad sheeino Mochiach see Making a neder without specifying verbally and there is no evidence that she is making a Shavua in the future to accept mens commandments. So no she does not have to keep Mitzvos intended for men.

*An an acceptance upon oneself in the future even without a reference to the word Shavua can be a yad (secondary type) of Shavua see Nedarim 8a האומר לחבירו נשכים ונשנה פרק זה עליו להשכים.