That's cool that you are passionate about it. In that case, I hope that you keep studying and learn about this religion that you feel strongly about, and make your choice having full information. I'm sorry that your mom is opposed. That can be a really rough situation. If it's what you want, then I hope she comes around. Maybe she will be able to see the good in it in terms of positive changes in you, and will change her mind. Some parents never do though, and that's really hard. Eventually you will be old enough to legally choose for yourself, but even then you will need to consider how it will affect your relationship with your mom. That is important too.