Passed over for promotion. What next?

I was recently turned down for a promotion for another candidate with far less seniority than me, and it's just crushing me. It's been three months and I just can't get over the depression it's causing. I feel so betrayed and want to quit, but I just don't know where to go next.

I've been in retail the last five years. Does anyone know retail places that actually pay well? Also does anyone know how to get over this depression? It's just too much.

Author: OkBookkeeper2652