<human>: My girlfriend and I have been dating for 14 months now, all 14 of which have been long distance. We live in different states, roughly 6 hours apart and see each other every 2-3 months for 2-3 days at a time. We have spent up to 10 days together on vacation. 

The problem I have been having is, I think, commitment. The plan is for her to move here after completing school in a year. As it comes closer I can't help but think, "I'm only 20. She's the first non-high school relationship I've had." It's a good relationship for the most part (we have occasional issues), but I'm having a really tough time thinking about this. I feel like I'm missing out on tons of experiences that would help me make a good, long-term relationship decision. But I'm also afraid I could be making a huge mistake by potentially ending this one which is pretty solid. 

I don't know if I want to break up. She thinks everything is okay, and I know I need to bring this up to her. But how? What if it goes sour? I'm pretty lost.

Condense the text into a few key points
<bot>: long-distance commitment issues. I'm young and haven't had many relationships. This one is good, but is it smart to settle so early? Or should I take what I have because it's good?