How to move on with a girl I’ve dated

I moved across the country for a job fresh out of school last year in a new city that is out of my home state. She is the same age as me in her early 20s and we connect so well together. We have dated for 2 months and i got laid off from my job so I'm moving back home with parents. I really enjoy spending time with her and it's emotionally hard for me to accept the fact that I won't be seeing her anymore soon. She makes me laugh and we both have a really good time together. I just can't get over the feeling of the memories we made together and how much i'll miss her smile and our conversations. How can i get over this feeling of being sad and emotional for this girl?