Converting away from Islam is inherently an improvement--I wish you two girls all the best. You are showing courage and a singular degree of spiritual wisdom. But I wish to caution you that the Islamic 'faith' does NOT take kindly to those who would exit from its yoke.
First, Muslims aren't so much as allowed to question its dogma, let alone act upon questioning Islam.
Secondly, Islam as you know has no capacity for humanity and issues death penalties with a quickness that puts the lie to any notion that it respects human life in any way or degree. Which means that you may face threats to your life. So take suitable precautions against those of your unchosen faith who may wish you harm for leaving.
I hope you succeed. And may you set an example that the rest of the muslim world will soon follow.