What else can one do if not to sober up after reflecting on what that win could've afforded one. It's normal to feel bad about it but we shouldn't dwell much on it. There's no need crying over spilled milk. Move on. It's good to take a chill pill and not chase that loss immediately. Chasing one's losses to recover  them doesn't often end well as emotional control won't be there to guard one on taking irrational decisions.

Winning in gambling shouldn't be taken as a bragging right kind of thing to show how many wins anyone has. That's the way I see it.