Confused about masturbation

So I’m 18 and I have never masturbated before. That semi (?) changed just recently, I guess, when I started trying to touch myself. I felt nothing. Not with a finger, not with touching my clitoris. I even tried watching porn, and felt nothing. Mainly just astonishment and disgust. I am so confused. Is this normal? The only reason I even started trying was because back in November, my friends refused to believe that I hadn’t failed NNN. I’m just so confused, and any help is appreciated.