sensitivity

Someone can suck on my clit for not even 5 minutes & I'll beg them to stop. It's becoming annoying. I've never orgasmed but is there any way I can fix how sensitive it is. Like I don't masturbate at all but maybe if I were to start using a vibrator on it maybe it'll like adapt to being pleasured lmao idk but seriously men always wanna give me oral but I have to say no bc of my problem. Any tips or anything? I'm 19 & it has always been this way