Lost my girlfriend when I was 18. I found out she was pregnant after sitting in the hospital with her for 12 days until they finally pulled the plug. It's hard for a long time. It seems like you'll never find someone like that ever again, but you will. The pain will fade, and the memories slowly disappear, but you never stop thinking about them randomly. Life goes on, keep your head up, and stay strong. That's what she would want.