Only gamble what you could afford to lose, and if it starts to stress you out then take a break and relax.
Don't take it seriously, avoid putting too much in it so that you could also focus on other things.
Try to enjoy it as much as you can, and if you aren't enjoying it and it is stressing you out, for me it is a clear sign that you need to move out from it or take a break.
Yeah it won't harm you if you take a break rather it will help to relief you of that stress some people usually neglect that fact and focus on just trying to win alone, with no clear mind you will only make things worse , and you will definitely regret it later .
But taken a break will help you to clear your head and get yourself back in game , this is way easier for those that are not gambling for the money rather for fun while those that usually gamble for money hardly learn from their mistakes because their mind his clouded with just winning or hitting the jackpot.