I have no female friends?

I say the first step is to start being friends with your sisters, you say there are seven of you. Once you get to know them, there likes and dislikes, try hanging out with them maybe you will meet other females through them that you may have something in common with, just give it a chance. Open up a little, maybe people or other females are scared to approach you , make your self approachable and smile. You'll never know until you try.