@RaceBoy
Not sure how much help that you need as you already know that it's time to move on. She was just much older than you and was probably looking for some financial stability and saw potential and a future with this firefighter.
My counsel is for you to focus on furthering your education by vo-tech or community college and full-time employment in a position with opportunity for growth. Next thing you know, some woman will dump some young guy for you.
When I was just a little older than you I had a girl of my dreams and she ended up to be my worse nightmare. Perhaps God spared you from years of misery.
I also recommend that you work on your personal relationship with the Lord. This should be your highest priority and the rest of the stuff will follow.
I have had my share of heartbreak due to poor choices on my part. Most of my pain in life has sadly been self-inflicted. From my perspective I believe that you have dodged a bullet. A couple or three years from now you will look back on this situation and come to realize that this heartbreak was actually a blessing in disguise from God.
The Guy upstairs is looking out for you and has your back. Yes, it's time to move forward and don't look back.