18F never developed a libido

Idk who to ask about this anymore. Everyone on the asexual page has a libido and complains about it, so I don't think it's related. I am an 18 year old girl and I've never ever developed a libido. What's wrong with me? It's not low, responsive, or occasional, it's just not there. Like I don't understand what a sexual urge even it is I've never felt it one. It's not even "mine doesn't fluctuate" during ovulation it's "what's supposed to fluctuate." That's how deep it is. Like the way I feel about sex hasn't changed at since I was like 8 if I'm being honest. I went through physical puberty at a normal time, even earlier than some people. Is it hormones? Idk.