Luckily I have never lost sleep over gambling. I've always gambled within my means and kept my bets semi-low. If you're having trouble with gambling and losing sleep over your losses it's time to take a step back and re-evaluate your addiction. Please, if you're spending money you can't afford to lose, get some help or counseling for your gambling.
I agree with this. If you can't take your losses then step back in gambling and don't never ever gamble again.
Before gambling, you must know the risk and consequences that you might face if you lose your money. Being sleepless in many consecutive nights is a sign that you are not suitable for gambling and you must don't gamble again since you can't take your losses. Keeping your bets low is one way to prevent regretting in the end if you loss or just put an amount that will not make you feel bad if you lose it since gamblers most of the time end up losing all of their money.
No need for reevaluation if you are experiencing this. Not sleeping for many nights. The best thing to do is to not to gamble anymore and focus on other things.