They don't say the "House always wins" for nothing. No matter what lucky charm, favorite cologne, rain dance or lucky underwear you have on or even playing by smart strategic moves, expect to lose sometimes. 

Check to see if online gambling is legal in the country, state, province or region where you will be playing from. You could end up losing more than just your hand at poker.

Gambling is meant to be fun, but it quickly drenches the party mood when you spend your rent or grocery money away. Stick to a limit that you can realistically afford. 

Mathematical statistics are proven for a reason and all casino games are designed on percentages and probabilities. Don't rely on luck alone - those constant winners you see aren't "lucky" - they just have a better understanding of the odds. 

There is no need to send any firefighters to douse your anger online. If you are frustrated and want to take out your anger, push that chair back and walk away for a couple of moments. Every website may have the same games but they may not have the same rules. Seek out the best rules which suit your advantages and preferences.Sitting by your computer desk, alone, makes you forget you are playing against real people and that online casinos are a real community.