Why haven't we, as Muslim women, prayed and obeyed God's commands?

You might be referring to the negligence of some Muslim women regarding their religious duties, which is unfitting for one who belongs to the greatest religion. The main reason for this is heedlessness towards Allah, and towards the terrors of the grave and the Day of Judgment. Allah Almighty said: "The reckoning of mankind has drawn near, while they are in heedlessness, turning away." (Quran 21:1). Methods of change lie in spreading beneficial knowledge, and in the role of righteous sisters in encouraging others to join Quranic circles and religious lessons. Despite this, there is much goodness and commitment among Muslim women.