I need sex advice please ladies

Okay so me and my SO have been together now for a year and four months. And everything is going great. But I seem to have a problem with getting horny these days. Usually I would jump him everyday if not two to three times a day and now it's just gone I want to but I just do not get horny so I just end up falling asleep and this has been a few weeks where this happens. The only time we only get down is when I've had a couple of drinks. I still love him with all my heart and I want to fix this because I think he feels I don't find him attractive anymore.

Sorry this is so long

I just need some advice.

I'm only 20 btw