I'm straight and boring. Sorry.
I don't want to rain on your parade, but from personal experience, it can take time. You might change. So be open to yourself. If you're still like that when you're like, 18, 19, then yeah, I'd stick with it. But you're also fourteen. I didn't develop my sexuality until I was nineteen. Before then I was strictly asexual. I didn't even understand what sexual attraction really was. So yes, you might change. I won't tell you to, but you need to understand that there is that possibility. This also goes for the 13 year old who said they were asexual.
One of my coworkers was asexual until he was 26. I'm not saying that permanent asexuals don't exist, but I do believe that some people take a lot longer than others to really become sexually interested.