Got kinda busted

If you saw my other thread, then you know I'm in miami. well, when we got the call I was at a party and had all my herb and supplies... so, I've been carting around all my stuff, which it pretty big, and I have a small bag. well, my mom for some reason had to go through it. today my sis said she was talking to mom and that she heard her say something about finding drug parafanaila. so now I'm left hanging with the stress of my mom knowing and her not doing anything yet. I know she did it when she was a kid. so I'm wondering how should I prepare for when she comes down on me, like what should I have prepared to say. Thanks for any of your help!

-Peace!