Lazy in bed

my girlfriend and I have been dating for over a year. I like to think of myself as a pretty sexual guy, and im wildly attracted to her. I love trying to find new ways to keep things exciting for her, and there really isnt much that im opposed to doing/trying. When we firt started dating she made it pretty clear that there are certain things that she just does not enjoy, so I didnt object as it was fun just getting used to being with a new person :) sorry to be frank, but all she really does is use her “hands” on me, which I do enjoy, but I cant help but feel like things are starting to get verrryyy booorrriiingg. So I started asking her if she would start incorporating some new stuff, and sometimes she will, but only when I ask, and she always makes it clear that she is not enjoying it. It makes me feel like im forcing her, which sucks all the fun and excitement out of it. I figured that some people just arent that sexual, but im really starting to get the feeling that its something wrong with me, im assuming that she wouldnt be dating me this long if she wasnt attracted to me, but its pretty clear that she does not enjoy pleasuring me. im pretty convinced that I am not getting out what I put in to our sex life. she seems to be pretty serious about us otherwise, but the sexual fun is fading for me. fast. what do I do?