I'm sorry you gambled and lost. It depends what happened, though. Can you speak to someone about a way to mitigate the problem, such as lower costs? Change some lifestyle things for a short period of time? Can you take a breather for a few days and not think about it and look at it with fresh eyes at that point?
I've had times where I tried to make things better and it ended up worse, and I usually take a few days to cool off and write down in columns on a pad what my options and potential outcomes are.