How did you not find any female warriors in their mythology?
Coyolxauhqui was a warrior goddess of the moon, she beheaded her mother Coatlicue, and she led the army of her 400 brothers.
The grandmother Tzitzimitl, (a star demon) lead her Tzitzimime down to her earth to track down Quetzalcoatl and Mayahuel, then killed Mayahuel and tore her body apart.
Itzpapalotl was the Queen of the Tzitzimime, she killed two cloud serpents and devoured them. At the end of the fifth age her star demons will descent down to earth and end the Aztec cosmology. Once all the humans are gone Huitzilopotchli will return to her mother Coatlicue.
Tlaltecuhtli was an Aztec female earth monster. She was considered the source of all living things, she had to be kept sated by human sacrifices which would ensure the continued order of the world. Sometimes she is conflated with Cipactli, another female monster.
Malinalxochitl: The Aztec Goddess of sorcery. The tribes people including Huitzilopotchli were afraid of her dark magic so they left her in the desert.
Cihuacōātl the serpent skirt was usually depicted with a shield and a spear. Her name was used as title for rulers.
The Goddess of sin and impurity Tlazōlteōtl can be seen in codex Borbonicus wearing the flayed human skin. This one may not be a Warrior but she sounds far creepier.
In addition to the Tzitzimime, there were two other female demonic groups of creatures: tlahuelpuchi the vampires, Cihuateteo the undead mothers as it was already mentioned by other users.
It looks like the ancients were really afraid of Aztec ladies.
As for history, there is no record that they received a formal military training, but there are several articles about the siege of Tenochtitlan that mention warrior women throwing darts at the enemies.