Do you know anyone who is taking gambling as a profession and yet making an household income for living ? I don't think anyone can make consistent income with gambling.
Gambling may give you a lot of money at once or you may lose all your money but getting regular income from gambling is impossible.
Those gamblers that have already a good status can do this. Those fairy tale stories of rags to riches through gambling are very rare but there are stories like that which are unbelievable.
I reckon that getting a daily profit through gambling is hard, it's not that impossible but it is inconsistent if someone does that. It can be a good day today and tomorrow up to a week but the next time, you know what's coming.
It feels difficult and impossible if you only rely on gambling results to survive without having any other income besides gambling.
and if there are people who consider gambling as a profession without us realizing that that person has other income created from the results of gambling played, then gambling is inseparable from losing and winning and there will be more losses than winning.
So it is impossible to rely solely on gambling to survive even though at first you can, but over time you will realize that gambling will not always be relied on to make ends meet.