Vaginal dryness

I've been having sex since I was 14 and I am going on 21 in a couple of months and I noticed that in the past year I've gotten dry and I cannot get as wet as I used to. It's upsetting because any female I tell this to is like oh well when you get my age that's normal. But, I am only 20. Is it bc I started so young or bc I used to have sex so much that now it doesn't work? I don't know. I use lube but it's annoying bc I used to soak my own panties and now I can't. Does anyone else have this issue?