Question!

Rosaleen • Feminist👊🏽💪🏽💪🏾😊❤️❣ I love to listen if anybody needs a friend!
I wanna start wearing thongs and pretty bras and lingerie for MY SALE ONLY. I'm 15, and I make money every once and a while so the things I want to get I buy. When me and my mom go clothes shopping I always look and she tells me no. Once again this is net for anybody else but me. So I can feel like I feel sexy and confident, so no panty lines, no show things, and just to help raise my confidence about how I look! How can I get my mom to understand that and allow me to buy them?