Before lamenting that you aren't getting hookups you should make sure that you are indeed hookup material.

And yes that might include Visceral attraction. That can look different for each person but in general some degree of physical attraction should be there to get her engines running and make her think that she will also feel physical attraction and pleasure if she sleeps with you. I wont get too much into the details but sometimes due to male imagination you might think that if the sexual fantasies are very real and vivid in your mind then they must be also logical and possible and that might not always be the case.