Go to your tribe's tale-speaker, and have them regale you with the legends of your ancestors and their greatest victories. The next day, when you are at school, stand up on a table, and cry out:
"Females! The blood of my ancestors is strong in my veins! The ferocity of their deeds swells in my heart, and their legacy of bloodshed and horror lives on in me! Who among you is strong enough to bear my seed? Who shall be she who is fortunate enough to give birth to the next generation of my family line? Speak now, and I shall do great deeds in your name, and slay the enemies of your tribe, so that their painted skulls may surround our wedding bed and look on with empty, envious eyes as we mock them with our lovemaking!"
Thump your fists against your chest a few times, and bare your teeth at any male who attempts to get too close. They are your rivals, and will be attempting to make you weak, so that they may take your prospective mates for themselves. Do not let them! Be strong, and be seen to be strong!
You will be balls-deep in bitches in no time!