Is this normal?

Hi 21 year old girl here. I’ve never orgasmed with my boyfriends (I’m using plural bc this goes for past relationships as well) unless I have a vibrator. I don’t feel much from them touching me or trying to eat me out and I’d love to help and give them some tips but I can’t even do it myself. I’ve never been able to get myself to orgasm without a vibrator and I’ve tried a lot. I just get frustrated and stop after a while. Is this normal? My friends don’t have this problem and I’m concerned as to why I do