So I’m in a newish (about a year) relationship having been in a sexless marriage for many years. I see new partner only every 4-6 weeks although we’re in daily contact in between. This works for us in current circs but is relevant due to limited opportunities to have sex.
So, I feel like the sex we’re having is kind of getting less good and not improving as we get more familiar with each other and having been out of practice so long I don’t know how to fix things.
Issues include
I can barely feel anything vaginally. We both like me on top because of the eye contact and he likes to look at my bod but other than when he’s too deep and hits my low-hanging cervix
I can’t really feel anything, even to the point of not noticing immediately that he’s slipped out

. Missionary is not much better though I get the sensation of him thrusting so it’s a bit better. Tried doggy and that didn’t really make much difference and I missed looking at him. For me, probably due to not having much sensation, the connection and the intimacy are really important. GP tells me I don’t have a prolapse and my vaginal walls are strong for my age (late 40s, 2 kids) I think I do have a mild prolapse and have been using an electronic pelvic floor toner that has massively improved my ability to flex my vaginal muscles but I still don’t feel like I can grip him. Him being slimmish of girth (though probably average, my husband was just very big) and me getting very wet don’t help much either
. Anyone got any ideas?
Other issue is that whilst we both love me being on top because of the view (both ways, I think he’s gorgeous and I’m not shy about him looking at my bod) I’m not used to being up there (never did it with my husband) and so can’t seem to get the rhythm right. Not being able to feel anything doesn’t really help either.
I just want it to be great. I have low expectations for myself in terms of having an orgasm but do get turned on and get a lot from the intimacy and feeling of closeness. I really want it to be good for him and I just feel a bit useless and that I’m probably crap compared to women he’s been with before. I don’t want to let on to him that I feel inadequate because I don’t think that’s very sexy but I’ve been trying to fake being a wanton goddess and I think after the last time which was a few days ago, my mask has slipped a bit and I just feel like a middle aged woman who doesn’t really know what she’s doing 
Help!