How do I keep it private?

Ella • Henna Artist ✌🏼Mermaid🐚 Ukulele and Piano Player🎶 Heteroromantic👫Bisexual👩‍❤️‍💋‍👩💏 Vegan 🍓Insta: @im_eyea
Hi, I'm 17 and I live with my parents... I really want to get a vibrator or dildo or line or something to enhance my self-pleasing time but I don't know how to keep it totally secret and hidden and how, where, and when to buy. Any help would be appreciated. Thanks!