Lutera Birth Control and sex drive

Hi, so I first started having sex when I was 15 and I wasn’t on birth control, and my sex drive was fine, it never hurt, I wouldn’t be dry or anything. I’m 18 now and I’m on birth control, have been since I was 17 for my period (it was really bad, but now I have no cramps and it’s light), but I’m also on it to prevent pregnancy. However, it has given me trouble to get wet for sex and it sucks. I want to enjoy sex without trying so hard to get wet. And I can’t really just go about and change my birth control for this reason because my parents know it has helped me with my period and all that and that it’s fine, but I can’t tell them about my sex life of course. They would kill me if they even knew I had a boyfriend. So... Is there anything I can do? I’m in college and I dorm there, there’s a nurse office but not necessarily a gynecologist or anything...

also i forgot to add : as soon as i’m on the placebo week of pills and my period comes, my sex drive is like back to normal!!!! but i’m on my period!!!!!!!!