"Coming out" contradictions??

This probably will be lengthy and blabbing a lot but I'm looking for advice of any kind or support. So here I go. I'm 14 and I'm question my sexuality like most teenage girls do in this time (According to my mum). I think I'm bisexual. And I told her about it and she instantly got defensive and said, "well do you want a girls tounge down your throat or up you pu**y" and I said well honestly no. I'm not ready for any gender, male, or female to do that to me. I don't like it. Or the thought of it. Really... She's like "well that's what relationships lead too, and at your age I don't really want you dating anyone, if you date a girl, they'll label you gay and if you date a certain guy, they'll label you a *****.." Which meh, I suppose to some extent is true. But I mean, I think I like my best friend and tbh im not worried about labels. That's exactly what they are, labels, they don't define me.. But my mum thinks we're just best of friends and I've never had a friend as close as her so im thinking I'm "something im not". She says ,"I know you guys hold hands and say I love you, and cuddle, and hug, but me and you aunti p do too, it's because we're the best of friends and yea, we act like it, but the thought of her and I sexually is a absolute no". I'm so confused Bc I think I like her.. Let me put it this way, I love her as my best friend, I think I mayyyybe like her as a girlfriend.. She has told me she's bisexual and that she even was in love with me.. But I don't know if she contradicts herself like I do too?! Ugh, I'm so frustrated and confused, any insight would be more than appreciated! Thanks