i can’t feel anything when i’m on top

I (18F) want to be able to be good at being on top. But the problem is I just don’t feel anything, nor does my partner (19M). We’re both very active with good stamina and his dick is very girthy and a good 6 inches so there’s nothing physically stopping us from making this work. I feel amazing in other positions especially doggy and the “speedbump” position. I just don’t get why we can’t make cowgirl work for us. Loads of women seem to love it but I don’t understand how they get any feeling out of it at all and I feel left out. I’ve tried grinding, bouncing, moving in circles, but nothing works I just end up uncomfortable and turned off. To begin with I thought it was a confidence issue as I was fairly new to sex and hated the feeling of being in control, but as I got more confident and was able to stay up there longer, but nothing had changed. Today we tried again and he made me feel more comfortable and stayed in control guiding my hips but no matter what I did I still couldn’t feel anything except the tip of his penis pocking against my cervix. Am I doing something wrong? Or is this a common issue I’m not aware of? Does it mean I’m not tight enough? If anyones going through the same thing or any advice would be great.