Feeling powerless against the Muslim men who won't let you come to the mosque? At least speak out against it. Did a speaker say something insensitive about sisters? Speak out against it. Use your knowledge of the Quran and Sunnah to challenge gender-unfriendly spaces and positions in the Muslim community.
Too often, the status quo is maintained because Muslim women do not speak up.
And don't just speak out against the bad. Ask questions and comment with wisdom as well.