Vibrator help

So I bought my first vibrator at 16. I don’t have much privacy so I did hide it but my older sister went through my stuff and my mom threw it away and I got in huge trouble and they still shame me about it to this day. I’m about to be 18 and am gonna be living with my parents for a bit longer. I want to order another but am afraid of the same thing happening... do I order one and hide it again or do I talk to my mom about it? Should I just wait till I move out?