Hardly possible. Getting retirement money from a regular 9-5 which is inarguably way better than gambling your whole life away is practically impossible nowadays already, what more would it make of the very thing that relies upon sheer luck? I mean if you're looking for retirement from getting gambling winnings might as well wish you have wings to fly up from where your head's probably at right now.
To work decades of your life for an average wage retirement once you reach your 60s or 70s years old doesn't look great either, but that is what is disponible for most of us, and besides this alternative there is none. Gambling isn't an alternative, anyway. As you said, it's nearly impossible to achieve retirement through gambling.
Here's one thing that I would like to let you know. No one gets retirement money from gambling their whole savings away, and no one who gambles ever retire. I've seen people old enough to be considered ultra-senior citizens still muster the last of their strength to crank the slot machine's lever, why? Beats me honestly, but I digress. The thing is that you'd spend so much money trying to reach that retirement money goal you're looking for that you're practically just better off saving that money instead and finding a decent job so you don't have to rely on other people's fortune to survive until your retirement. There's no such thing as getting retirement money from gambling, as even those who win literal hundreds of millions of dollars from lotteries statistically lose their shit (and by shit I mean money) in 4-5 years because of their subpar financial literacy. It's just the way things go. If you want to find the capability to retire you'd never see it in the gambling world.
Yes, someone on his 20s or 30s years old is very likely to waste not only his days, but also his whole patrimony attempting to grow it through gambling for a retirement along the years. I've also seen some people who are now around 50 years old and have never built anything solid in their lives, because all the money they make goes to alcohol, drugs or gambling at local shops. They may complain about several factors and aspects of their lives which prevented them from going further, but the reality is that they didn't even try to change for better.
And I really believe these people have tendencies of thinking they would win big from gambling at some point, and that would be a life changer, but for most people it won't happen, so by watching their examples, we have to adopt more solid and concrete decisions for ourselves, sticking to a regular 9-5 job and trying to make investments along the years, so we can boost our retirement later.