Often gambles when feeling depressed (eg stressed, helpless, guilty, anxious, depressed).
Are we one of the online gambling addicts...?

In most cases, people who are addicted to gambling are almost on average not having work activities or we can say unemployment, although it is possible for people who are actively working.
I think some of the symptoms you mention do not determine someone is addicted to gambling. Anxiety, emotional, stress are common things that happen when I lose a gamble, this is normal and will return to normal after a while.
apart from feeling depressed, helpless, cheating to get gambling capital, this can be an indication of someone being seriously addicted.
well anything done in excess will have a bad impact.The same goes for gambling activities.
In this case I can't say this is true or not because I haven't found any evidence about the majority who are there are unemployed but in this case it doesn't really matter whether they are unemployed or who already have a permanent job there, it's still the same impact for everyone who is already addicted.
Because when we gamble, it is clear that there is a measure that we can indeed do, for example when unemployed, the defeat will certainly not be as much as those who have work because their finances are not too adequate but in terms of stress it will still be the same.