Wtf is wrong with my clit

Okay I’m 17 years old, and I’ve tried to masturbate before. Whenever I touch my clit I don’t feel a crazy sensation but I do feel something. When I use spit and all my wetness to rub on my clit it’s like the sensation stops. Am I not aroused enough? (like I feel guilty when I watch porn and it ruins it for me sometimes), or is this normal to not have much sensation? What should I be doing to feel sensation??