At 23 you're younger than you think you are, but 30 will be on you in the blink of an eye. If you really want this girl, I'd suggest doing all you can hone your social skills, there are hundreds of conversation tips videos on youtube. But maybe you don't need that? I'm just making a suggestion based on the little information there is in your post.
I wouldn't worry about inexperience, knowledge can fill the gaps if and only if you use it correctly.