If cash tables, perhaps just switch to another table within your limits. That way you get to keep playing, keep volume up to give you chances to win. However, if you are starting (or flat out feeling) to feel frustrated/angry/in any way tilty, for sure, take a break. Just go do some Honeydew chores, mow the lawn, build something in the shop, watch a sitcom, hell, bang the wife/husband/partner if they're down! Just do something to get you out of that mindset. If it was just a cool table or a run of bad luck, you should be right back into gaining ground. If not, like others have said, take a look at your play and make sure you're not making mistakes!