How to use a vibrating Massager?

Okay so this isn’t my first ballgame when it comes to flicking the bean lol but I’ve always been more of a finger girl. I wanted to try something new though so I tried out a vibrating massager. The vibration kinda made me numb though? Like I tried it out and when I didn’t get off I tried the good old fashioned way but I felt really desensitized? Anyone have any advice for using a vibe without accidentally numbing myself?