Caught Up in Old Memories at Work

It's been a month since I got divorced, and the shift at work is always when these old memories hit me hard. Today, while shelving books, my hand brushed against an old yearbook with our wedding photo inside. It was like being transported back to those heady days before reality set in. I couldn't help but stare at it for a moment, remembering how we used to be so connected and intimate. Now, there's just this empty feeling that nothing will ever fill again. Is it normal to feel so lost? Should I try to let go of these old ties completely or is there something more I can do to move forward?