Making her your familiar would be a violation, however If your cat kiki is your familiar, you will notice she is around A LOT when you are practicing magic, or that she will hang out around your sacred space, and other small visual cues like this. Personally I have had 3 rats, only one of witch was my familiar. I knew he was because I not only felt it in my heart, but when I was doing a rite or a spell, or even just playing with herbs, he'd sit right at the edge of his cage until I pulled him out, then he'd sit on my shoulder, or on my altar and help me any way he could. It's very empowering to have a familiar with you, because you learn to work in unison with each other, and play off each others energies, the same way you would by working in a coven setting, or a with some friends or a loved one. This team work not only fills you with joy, but the energy that can build up can reach points of intoxication and make you feel as if you were high. I've found I feel extremely close to deity at this time.
This is speaking from my own personal experience though, and everyone finds their familiar in their own way. If kiki is your familiar you will know when the time is right.